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Finding the Fourth Proportional to 9,959.38, 15,005.56 and 9,010.66

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Solution

The fourth proportional to 9,959.38, 15,005.56 and 9,010.66 is: 13,576.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,959.38 : 15,005.56 = 9,010.66 : x
  2. Step 2: Convert to fraction form
    9,959.38/15,005.56 = 9,010.66/x
  3. Step 3: Cross multiply
    9,959.38x = 15,005.56 × 9,010.66
  4. Step 4: Simplify right side
    9,959.38x = 135,209,999.27
  5. Step 5: Solve for x
    x = 135,209,999.27/9,959.38
  6. Step 6: Final answer
    x = 13,576.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.