Home / 11,680.40-16,132.36-8,507.83

Finding the Fourth Proportional to 11,680.40, 16,132.36 and 8,507.83

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Solution

The fourth proportional to 11,680.40, 16,132.36 and 8,507.83 is: 11,750.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,680.40 : 16,132.36 = 8,507.83 : x
  2. Step 2: Convert to fraction form
    11,680.40/16,132.36 = 8,507.83/x
  3. Step 3: Cross multiply
    11,680.40x = 16,132.36 × 8,507.83
  4. Step 4: Simplify right side
    11,680.40x = 137,251,376.38
  5. Step 5: Solve for x
    x = 137,251,376.38/11,680.40
  6. Step 6: Final answer
    x = 11,750.57

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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.