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Finding the Fourth Proportional to 10,504.80, 15,744.96 and 8,437.68

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Solution

The fourth proportional to 10,504.80, 15,744.96 and 8,437.68 is: 12,646.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,504.80 : 15,744.96 = 8,437.68 : x
  2. Step 2: Convert to fraction form
    10,504.80/15,744.96 = 8,437.68/x
  3. Step 3: Cross multiply
    10,504.80x = 15,744.96 × 8,437.68
  4. Step 4: Simplify right side
    10,504.80x = 132,850,934.09
  5. Step 5: Solve for x
    x = 132,850,934.09/10,504.80
  6. Step 6: Final answer
    x = 12,646.69

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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.