Home / 11,293.92-15,581.16-7,042.50

Finding the Fourth Proportional to 11,293.92, 15,581.16 and 7,042.50

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Solution

The fourth proportional to 11,293.92, 15,581.16 and 7,042.50 is: 9,715.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,293.92 : 15,581.16 = 7,042.50 : x
  2. Step 2: Convert to fraction form
    11,293.92/15,581.16 = 7,042.50/x
  3. Step 3: Cross multiply
    11,293.92x = 15,581.16 × 7,042.50
  4. Step 4: Simplify right side
    11,293.92x = 109,730,319.30
  5. Step 5: Solve for x
    x = 109,730,319.30/11,293.92
  6. Step 6: Final answer
    x = 9,715.88

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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.