Home / 10,500.20-15,752.52-3,479.82

Finding the Fourth Proportional to 10,500.20, 15,752.52 and 3,479.82

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Solution

The fourth proportional to 10,500.20, 15,752.52 and 3,479.82 is: 5,220.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,500.20 : 15,752.52 = 3,479.82 : x
  2. Step 2: Convert to fraction form
    10,500.20/15,752.52 = 3,479.82/x
  3. Step 3: Cross multiply
    10,500.20x = 15,752.52 × 3,479.82
  4. Step 4: Simplify right side
    10,500.20x = 54,815,934.15
  5. Step 5: Solve for x
    x = 54,815,934.15/10,500.20
  6. Step 6: Final answer
    x = 5,220.47

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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.