Home / 13,872.03-20,807.95-5,553.97

Finding the Fourth Proportional to 13,872.03, 20,807.95 and 5,553.97

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Solution

The fourth proportional to 13,872.03, 20,807.95 and 5,553.97 is: 8,330.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872.03 : 20,807.95 = 5,553.97 : x
  2. Step 2: Convert to fraction form
    13,872.03/20,807.95 = 5,553.97/x
  3. Step 3: Cross multiply
    13,872.03x = 20,807.95 × 5,553.97
  4. Step 4: Simplify right side
    13,872.03x = 115,566,730.06
  5. Step 5: Solve for x
    x = 115,566,730.06/13,872.03
  6. Step 6: Final answer
    x = 8,330.92

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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.