Home / 10,348.92-15,515.82-6,655.32

Finding the Fourth Proportional to 10,348.92, 15,515.82 and 6,655.32

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Solution

The fourth proportional to 10,348.92, 15,515.82 and 6,655.32 is: 9,978.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,348.92 : 15,515.82 = 6,655.32 : x
  2. Step 2: Convert to fraction form
    10,348.92/15,515.82 = 6,655.32/x
  3. Step 3: Cross multiply
    10,348.92x = 15,515.82 × 6,655.32
  4. Step 4: Simplify right side
    10,348.92x = 103,262,747.16
  5. Step 5: Solve for x
    x = 103,262,747.16/10,348.92
  6. Step 6: Final answer
    x = 9,978.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.