Home / 12,432.68-18,648.50-5,037.20

Finding the Fourth Proportional to 12,432.68, 18,648.50 and 5,037.20

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Solution

The fourth proportional to 12,432.68, 18,648.50 and 5,037.20 is: 7,555.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.68 : 18,648.50 = 5,037.20 : x
  2. Step 2: Convert to fraction form
    12,432.68/18,648.50 = 5,037.20/x
  3. Step 3: Cross multiply
    12,432.68x = 18,648.50 × 5,037.20
  4. Step 4: Simplify right side
    12,432.68x = 93,936,224.20
  5. Step 5: Solve for x
    x = 93,936,224.20/12,432.68
  6. Step 6: Final answer
    x = 7,555.59

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Double scale
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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.