Home / 12,387.84-18,567.36-4,591.68

Finding the Fourth Proportional to 12,387.84, 18,567.36 and 4,591.68

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Solution

The fourth proportional to 12,387.84, 18,567.36 and 4,591.68 is: 6,882.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.84 : 18,567.36 = 4,591.68 : x
  2. Step 2: Convert to fraction form
    12,387.84/18,567.36 = 4,591.68/x
  3. Step 3: Cross multiply
    12,387.84x = 18,567.36 × 4,591.68
  4. Step 4: Simplify right side
    12,387.84x = 85,255,375.56
  5. Step 5: Solve for x
    x = 85,255,375.56/12,387.84
  6. Step 6: Final answer
    x = 6,882.18

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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.