Home / 15,139.80-22,706.46-4,745.88

Finding the Fourth Proportional to 15,139.80, 22,706.46 and 4,745.88

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Solution

The fourth proportional to 15,139.80, 22,706.46 and 4,745.88 is: 7,117.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,139.80 : 22,706.46 = 4,745.88 : x
  2. Step 2: Convert to fraction form
    15,139.80/22,706.46 = 4,745.88/x
  3. Step 3: Cross multiply
    15,139.80x = 22,706.46 × 4,745.88
  4. Step 4: Simplify right side
    15,139.80x = 107,762,134.38
  5. Step 5: Solve for x
    x = 107,762,134.38/15,139.80
  6. Step 6: Final answer
    x = 7,117.80

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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.