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Finding the Fourth Proportional to 8,943, 12,337.92 and 6,899.52

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Solution

The fourth proportional to 8,943, 12,337.92 and 6,899.52 is: 9,518.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943 : 12,337.92 = 6,899.52 : x
  2. Step 2: Convert to fraction form
    8,943/12,337.92 = 6,899.52/x
  3. Step 3: Cross multiply
    8,943x = 12,337.92 × 6,899.52
  4. Step 4: Simplify right side
    8,943x = 85,125,725.80
  5. Step 5: Solve for x
    x = 85,125,725.80/8,943
  6. Step 6: Final answer
    x = 9,518.70

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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.