Home / 12,301.80-18,472.16-9,716.28

Finding the Fourth Proportional to 12,301.80, 18,472.16 and 9,716.28

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Solution

The fourth proportional to 12,301.80, 18,472.16 and 9,716.28 is: 14,589.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,301.80 : 18,472.16 = 9,716.28 : x
  2. Step 2: Convert to fraction form
    12,301.80/18,472.16 = 9,716.28/x
  3. Step 3: Cross multiply
    12,301.80x = 18,472.16 × 9,716.28
  4. Step 4: Simplify right side
    12,301.80x = 179,480,678.76
  5. Step 5: Solve for x
    x = 179,480,678.76/12,301.80
  6. Step 6: Final answer
    x = 14,589.79

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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.