Home / 11,432.19-15,781.81-8,600.64

Finding the Fourth Proportional to 11,432.19, 15,781.81 and 8,600.64

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Solution

The fourth proportional to 11,432.19, 15,781.81 and 8,600.64 is: 11,872.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,432.19 : 15,781.81 = 8,600.64 : x
  2. Step 2: Convert to fraction form
    11,432.19/15,781.81 = 8,600.64/x
  3. Step 3: Cross multiply
    11,432.19x = 15,781.81 × 8,600.64
  4. Step 4: Simplify right side
    11,432.19x = 135,733,666.36
  5. Step 5: Solve for x
    x = 135,733,666.36/11,432.19
  6. Step 6: Final answer
    x = 11,872.94

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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.