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Finding the Fourth Proportional to 8,557.92, 12,767.76 and 7,310.88

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Solution

The fourth proportional to 8,557.92, 12,767.76 and 7,310.88 is: 10,907.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.92 : 12,767.76 = 7,310.88 : x
  2. Step 2: Convert to fraction form
    8,557.92/12,767.76 = 7,310.88/x
  3. Step 3: Cross multiply
    8,557.92x = 12,767.76 × 7,310.88
  4. Step 4: Simplify right side
    8,557.92x = 93,343,561.23
  5. Step 5: Solve for x
    x = 93,343,561.23/8,557.92
  6. Step 6: Final answer
    x = 10,907.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.