Home / 11,755.39-16,222.70-6,450.19

Finding the Fourth Proportional to 11,755.39, 16,222.70 and 6,450.19

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Solution

The fourth proportional to 11,755.39, 16,222.70 and 6,450.19 is: 8,901.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,755.39 : 16,222.70 = 6,450.19 : x
  2. Step 2: Convert to fraction form
    11,755.39/16,222.70 = 6,450.19/x
  3. Step 3: Cross multiply
    11,755.39x = 16,222.70 × 6,450.19
  4. Step 4: Simplify right side
    11,755.39x = 104,639,497.31
  5. Step 5: Solve for x
    x = 104,639,497.31/11,755.39
  6. Step 6: Final answer
    x = 8,901.41

Related Problems

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Half scale
Find fourth proportional to 23,510.78, 32,445.40 and 12,900.38
Double scale
Find fourth proportional to 11,756.39, 16,224.08 and 6,451.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.