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Finding the Fourth Proportional to 8,731.74, 12,052.62 and 6,492.90

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Solution

The fourth proportional to 8,731.74, 12,052.62 and 6,492.90 is: 8,962.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.74 : 12,052.62 = 6,492.90 : x
  2. Step 2: Convert to fraction form
    8,731.74/12,052.62 = 6,492.90/x
  3. Step 3: Cross multiply
    8,731.74x = 12,052.62 × 6,492.90
  4. Step 4: Simplify right side
    8,731.74x = 78,256,456.40
  5. Step 5: Solve for x
    x = 78,256,456.40/8,731.74
  6. Step 6: Final answer
    x = 8,962.30

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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.