Home / 15,329.79-22,989.42-7,427.70

Finding the Fourth Proportional to 15,329.79, 22,989.42 and 7,427.70

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Solution

The fourth proportional to 15,329.79, 22,989.42 and 7,427.70 is: 11,139.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,329.79 : 22,989.42 = 7,427.70 : x
  2. Step 2: Convert to fraction form
    15,329.79/22,989.42 = 7,427.70/x
  3. Step 3: Cross multiply
    15,329.79x = 22,989.42 × 7,427.70
  4. Step 4: Simplify right side
    15,329.79x = 170,758,514.93
  5. Step 5: Solve for x
    x = 170,758,514.93/15,329.79
  6. Step 6: Final answer
    x = 11,139.00

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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.