Home / 11,551.17-15,939.28-6,515.47

Finding the Fourth Proportional to 11,551.17, 15,939.28 and 6,515.47

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Solution

The fourth proportional to 11,551.17, 15,939.28 and 6,515.47 is: 8,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,551.17 : 15,939.28 = 6,515.47 : x
  2. Step 2: Convert to fraction form
    11,551.17/15,939.28 = 6,515.47/x
  3. Step 3: Cross multiply
    11,551.17x = 15,939.28 × 6,515.47
  4. Step 4: Simplify right side
    11,551.17x = 103,851,921.97
  5. Step 5: Solve for x
    x = 103,851,921.97/11,551.17
  6. Step 6: Final answer
    x = 8,990.60

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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.