Home / 12,432.16-18,613.36-9,326.62

Finding the Fourth Proportional to 12,432.16, 18,613.36 and 9,326.62

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Solution

The fourth proportional to 12,432.16, 18,613.36 and 9,326.62 is: 13,963.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.16 : 18,613.36 = 9,326.62 : x
  2. Step 2: Convert to fraction form
    12,432.16/18,613.36 = 9,326.62/x
  3. Step 3: Cross multiply
    12,432.16x = 18,613.36 × 9,326.62
  4. Step 4: Simplify right side
    12,432.16x = 173,599,735.64
  5. Step 5: Solve for x
    x = 173,599,735.64/12,432.16
  6. Step 6: Final answer
    x = 13,963.76

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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.