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Finding the Fourth Proportional to 10,488.80, 15,733.20 and 4,344.80

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Solution

The fourth proportional to 10,488.80, 15,733.20 and 4,344.80 is: 6,517.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,488.80 : 15,733.20 = 4,344.80 : x
  2. Step 2: Convert to fraction form
    10,488.80/15,733.20 = 4,344.80/x
  3. Step 3: Cross multiply
    10,488.80x = 15,733.20 × 4,344.80
  4. Step 4: Simplify right side
    10,488.80x = 68,357,607.36
  5. Step 5: Solve for x
    x = 68,357,607.36/10,488.80
  6. Step 6: Final answer
    x = 6,517.20

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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.