Home / 14,658.68-21,998.82-9,120.17

Finding the Fourth Proportional to 14,658.68, 21,998.82 and 9,120.17

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Solution

The fourth proportional to 14,658.68, 21,998.82 and 9,120.17 is: 13,686.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,658.68 : 21,998.82 = 9,120.17 : x
  2. Step 2: Convert to fraction form
    14,658.68/21,998.82 = 9,120.17/x
  3. Step 3: Cross multiply
    14,658.68x = 21,998.82 × 9,120.17
  4. Step 4: Simplify right side
    14,658.68x = 200,632,978.20
  5. Step 5: Solve for x
    x = 200,632,978.20/14,658.68
  6. Step 6: Final answer
    x = 13,686.97

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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.