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Finding the Fourth Proportional to 8,487.08, 11,718 and 6,494.16

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Solution

The fourth proportional to 8,487.08, 11,718 and 6,494.16 is: 8,966.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.08 : 11,718 = 6,494.16 : x
  2. Step 2: Convert to fraction form
    8,487.08/11,718 = 6,494.16/x
  3. Step 3: Cross multiply
    8,487.08x = 11,718 × 6,494.16
  4. Step 4: Simplify right side
    8,487.08x = 76,098,566.88
  5. Step 5: Solve for x
    x = 76,098,566.88/8,487.08
  6. Step 6: Final answer
    x = 8,966.40

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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.