Home / 15,145.53-20,902.91-9,572.73

Finding the Fourth Proportional to 15,145.53, 20,902.91 and 9,572.73

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Solution

The fourth proportional to 15,145.53, 20,902.91 and 9,572.73 is: 13,211.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145.53 : 20,902.91 = 9,572.73 : x
  2. Step 2: Convert to fraction form
    15,145.53/20,902.91 = 9,572.73/x
  3. Step 3: Cross multiply
    15,145.53x = 20,902.91 × 9,572.73
  4. Step 4: Simplify right side
    15,145.53x = 200,097,865.78
  5. Step 5: Solve for x
    x = 200,097,865.78/15,145.53
  6. Step 6: Final answer
    x = 13,211.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.