Home / 12,439.53-17,160.02-8,609.55

Finding the Fourth Proportional to 12,439.53, 17,160.02 and 8,609.55

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Solution

The fourth proportional to 12,439.53, 17,160.02 and 8,609.55 is: 11,876.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.53 : 17,160.02 = 8,609.55 : x
  2. Step 2: Convert to fraction form
    12,439.53/17,160.02 = 8,609.55/x
  3. Step 3: Cross multiply
    12,439.53x = 17,160.02 × 8,609.55
  4. Step 4: Simplify right side
    12,439.53x = 147,740,007.14
  5. Step 5: Solve for x
    x = 147,740,007.14/12,439.53
  6. Step 6: Final answer
    x = 11,876.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.