Home / 12,432.33-18,642.65-3,665.52

Finding the Fourth Proportional to 12,432.33, 18,642.65 and 3,665.52

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Solution

The fourth proportional to 12,432.33, 18,642.65 and 3,665.52 is: 5,496.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.33 : 18,642.65 = 3,665.52 : x
  2. Step 2: Convert to fraction form
    12,432.33/18,642.65 = 3,665.52/x
  3. Step 3: Cross multiply
    12,432.33x = 18,642.65 × 3,665.52
  4. Step 4: Simplify right side
    12,432.33x = 68,334,988.10
  5. Step 5: Solve for x
    x = 68,334,988.10/12,432.33
  6. Step 6: Final answer
    x = 5,496.56

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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.