Home / 10,192.21-14,059.29-6,409.39

Finding the Fourth Proportional to 10,192.21, 14,059.29 and 6,409.39

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Solution

The fourth proportional to 10,192.21, 14,059.29 and 6,409.39 is: 8,841.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,192.21 : 14,059.29 = 6,409.39 : x
  2. Step 2: Convert to fraction form
    10,192.21/14,059.29 = 6,409.39/x
  3. Step 3: Cross multiply
    10,192.21x = 14,059.29 × 6,409.39
  4. Step 4: Simplify right side
    10,192.21x = 90,111,440.69
  5. Step 5: Solve for x
    x = 90,111,440.69/10,192.21
  6. Step 6: Final answer
    x = 8,841.21

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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.