Home / 14,887.97-20,545.45-8,174.28

Finding the Fourth Proportional to 14,887.97, 20,545.45 and 8,174.28

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Solution

The fourth proportional to 14,887.97, 20,545.45 and 8,174.28 is: 11,280.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,887.97 : 20,545.45 = 8,174.28 : x
  2. Step 2: Convert to fraction form
    14,887.97/20,545.45 = 8,174.28/x
  3. Step 3: Cross multiply
    14,887.97x = 20,545.45 × 8,174.28
  4. Step 4: Simplify right side
    14,887.97x = 167,944,261.03
  5. Step 5: Solve for x
    x = 167,944,261.03/14,887.97
  6. Step 6: Final answer
    x = 11,280.54

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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.