Home / 10,925.20-16,390.08-3,530.08

Finding the Fourth Proportional to 10,925.20, 16,390.08 and 3,530.08

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Solution

The fourth proportional to 10,925.20, 16,390.08 and 3,530.08 is: 5,295.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,925.20 : 16,390.08 = 3,530.08 : x
  2. Step 2: Convert to fraction form
    10,925.20/16,390.08 = 3,530.08/x
  3. Step 3: Cross multiply
    10,925.20x = 16,390.08 × 3,530.08
  4. Step 4: Simplify right side
    10,925.20x = 57,858,293.61
  5. Step 5: Solve for x
    x = 57,858,293.61/10,925.20
  6. Step 6: Final answer
    x = 5,295.86

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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.