Home / 12,432.43-18,642.23-3,666.20

Finding the Fourth Proportional to 12,432.43, 18,642.23 and 3,666.20

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Solution

The fourth proportional to 12,432.43, 18,642.23 and 3,666.20 is: 5,497.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.43 : 18,642.23 = 3,666.20 : x
  2. Step 2: Convert to fraction form
    12,432.43/18,642.23 = 3,666.20/x
  3. Step 3: Cross multiply
    12,432.43x = 18,642.23 × 3,666.20
  4. Step 4: Simplify right side
    12,432.43x = 68,346,125.30
  5. Step 5: Solve for x
    x = 68,346,125.30/12,432.43
  6. Step 6: Final answer
    x = 5,497.41

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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.