Home / 12,487.52-18,732.57-4,165.32

Finding the Fourth Proportional to 12,487.52, 18,732.57 and 4,165.32

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Solution

The fourth proportional to 12,487.52, 18,732.57 and 4,165.32 is: 6,248.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487.52 : 18,732.57 = 4,165.32 : x
  2. Step 2: Convert to fraction form
    12,487.52/18,732.57 = 4,165.32/x
  3. Step 3: Cross multiply
    12,487.52x = 18,732.57 × 4,165.32
  4. Step 4: Simplify right side
    12,487.52x = 78,027,203.10
  5. Step 5: Solve for x
    x = 78,027,203.10/12,487.52
  6. Step 6: Final answer
    x = 6,248.42

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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.