Home / 8,707.28-13,060.91-3,160.61

Finding the Fourth Proportional to 8,707.28, 13,060.91 and 3,160.61

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Solution

The fourth proportional to 8,707.28, 13,060.91 and 3,160.61 is: 4,740.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707.28 : 13,060.91 = 3,160.61 : x
  2. Step 2: Convert to fraction form
    8,707.28/13,060.91 = 3,160.61/x
  3. Step 3: Cross multiply
    8,707.28x = 13,060.91 × 3,160.61
  4. Step 4: Simplify right side
    8,707.28x = 41,280,385.35
  5. Step 5: Solve for x
    x = 41,280,385.35/8,707.28
  6. Step 6: Final answer
    x = 4,740.91

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1.5x scale

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.