Home / 10,149.72-15,223.60-3,127.85

Finding the Fourth Proportional to 10,149.72, 15,223.60 and 3,127.85

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Solution

The fourth proportional to 10,149.72, 15,223.60 and 3,127.85 is: 4,691.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,149.72 : 15,223.60 = 3,127.85 : x
  2. Step 2: Convert to fraction form
    10,149.72/15,223.60 = 3,127.85/x
  3. Step 3: Cross multiply
    10,149.72x = 15,223.60 × 3,127.85
  4. Step 4: Simplify right side
    10,149.72x = 47,617,075.73
  5. Step 5: Solve for x
    x = 47,617,075.73/10,149.72
  6. Step 6: Final answer
    x = 4,691.47

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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.