Home / 8,924.74-13,387.20-3,658.40

Finding the Fourth Proportional to 8,924.74, 13,387.20 and 3,658.40

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Solution

The fourth proportional to 8,924.74, 13,387.20 and 3,658.40 is: 5,487.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,924.74 : 13,387.20 = 3,658.40 : x
  2. Step 2: Convert to fraction form
    8,924.74/13,387.20 = 3,658.40/x
  3. Step 3: Cross multiply
    8,924.74x = 13,387.20 × 3,658.40
  4. Step 4: Simplify right side
    8,924.74x = 48,975,765.95
  5. Step 5: Solve for x
    x = 48,975,765.95/8,924.74
  6. Step 6: Final answer
    x = 5,487.64

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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.