Home / 13,432.76-20,135.64-5,110.64

Finding the Fourth Proportional to 13,432.76, 20,135.64 and 5,110.64

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Solution

The fourth proportional to 13,432.76, 20,135.64 and 5,110.64 is: 7,660.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.76 : 20,135.64 = 5,110.64 : x
  2. Step 2: Convert to fraction form
    13,432.76/20,135.64 = 5,110.64/x
  3. Step 3: Cross multiply
    13,432.76x = 20,135.64 × 5,110.64
  4. Step 4: Simplify right side
    13,432.76x = 102,906,007.21
  5. Step 5: Solve for x
    x = 102,906,007.21/13,432.76
  6. Step 6: Final answer
    x = 7,660.82

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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.