Home / 13,393.83-20,076.15-9,000.39

Finding the Fourth Proportional to 13,393.83, 20,076.15 and 9,000.39

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Solution

The fourth proportional to 13,393.83, 20,076.15 and 9,000.39 is: 13,490.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,393.83 : 20,076.15 = 9,000.39 : x
  2. Step 2: Convert to fraction form
    13,393.83/20,076.15 = 9,000.39/x
  3. Step 3: Cross multiply
    13,393.83x = 20,076.15 × 9,000.39
  4. Step 4: Simplify right side
    13,393.83x = 180,693,179.70
  5. Step 5: Solve for x
    x = 180,693,179.70/13,393.83
  6. Step 6: Final answer
    x = 13,490.78

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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.