Home / 15,040.24-22,545.48-7,128.88

Finding the Fourth Proportional to 15,040.24, 22,545.48 and 7,128.88

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Solution

The fourth proportional to 15,040.24, 22,545.48 and 7,128.88 is: 10,686.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,040.24 : 22,545.48 = 7,128.88 : x
  2. Step 2: Convert to fraction form
    15,040.24/22,545.48 = 7,128.88/x
  3. Step 3: Cross multiply
    15,040.24x = 22,545.48 × 7,128.88
  4. Step 4: Simplify right side
    15,040.24x = 160,723,991.83
  5. Step 5: Solve for x
    x = 160,723,991.83/15,040.24
  6. Step 6: Final answer
    x = 10,686.27

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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.