Home / 11,411.28-15,747.48-8,013.06

Finding the Fourth Proportional to 11,411.28, 15,747.48 and 8,013.06

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Solution

The fourth proportional to 11,411.28, 15,747.48 and 8,013.06 is: 11,057.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,411.28 : 15,747.48 = 8,013.06 : x
  2. Step 2: Convert to fraction form
    11,411.28/15,747.48 = 8,013.06/x
  3. Step 3: Cross multiply
    11,411.28x = 15,747.48 × 8,013.06
  4. Step 4: Simplify right side
    11,411.28x = 126,185,502.09
  5. Step 5: Solve for x
    x = 126,185,502.09/11,411.28
  6. Step 6: Final answer
    x = 11,057.96

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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.