Home / 15,909.11-23,855.51-8,416.71

Finding the Fourth Proportional to 15,909.11, 23,855.51 and 8,416.71

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Solution

The fourth proportional to 15,909.11, 23,855.51 and 8,416.71 is: 12,620.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,909.11 : 23,855.51 = 8,416.71 : x
  2. Step 2: Convert to fraction form
    15,909.11/23,855.51 = 8,416.71/x
  3. Step 3: Cross multiply
    15,909.11x = 23,855.51 × 8,416.71
  4. Step 4: Simplify right side
    15,909.11x = 200,784,867.49
  5. Step 5: Solve for x
    x = 200,784,867.49/15,909.11
  6. Step 6: Final answer
    x = 12,620.75

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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.