Home / 15,747.20-23,620.80-7,424.48

Finding the Fourth Proportional to 15,747.20, 23,620.80 and 7,424.48

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Solution

The fourth proportional to 15,747.20, 23,620.80 and 7,424.48 is: 11,136.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,747.20 : 23,620.80 = 7,424.48 : x
  2. Step 2: Convert to fraction form
    15,747.20/23,620.80 = 7,424.48/x
  3. Step 3: Cross multiply
    15,747.20x = 23,620.80 × 7,424.48
  4. Step 4: Simplify right side
    15,747.20x = 175,372,157.18
  5. Step 5: Solve for x
    x = 175,372,157.18/15,747.20
  6. Step 6: Final answer
    x = 11,136.72

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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.