Home / 10,720.18-14,795.75-6,738.22

Finding the Fourth Proportional to 10,720.18, 14,795.75 and 6,738.22

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Solution

The fourth proportional to 10,720.18, 14,795.75 and 6,738.22 is: 9,299.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.18 : 14,795.75 = 6,738.22 : x
  2. Step 2: Convert to fraction form
    10,720.18/14,795.75 = 6,738.22/x
  3. Step 3: Cross multiply
    10,720.18x = 14,795.75 × 6,738.22
  4. Step 4: Simplify right side
    10,720.18x = 99,696,910.90
  5. Step 5: Solve for x
    x = 99,696,910.90/10,720.18
  6. Step 6: Final answer
    x = 9,299.93

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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.