Home / 15,145.28-20,902.56-9,572.48

Finding the Fourth Proportional to 15,145.28, 20,902.56 and 9,572.48

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Solution

The fourth proportional to 15,145.28, 20,902.56 and 9,572.48 is: 13,211.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145.28 : 20,902.56 = 9,572.48 : x
  2. Step 2: Convert to fraction form
    15,145.28/20,902.56 = 9,572.48/x
  3. Step 3: Cross multiply
    15,145.28x = 20,902.56 × 9,572.48
  4. Step 4: Simplify right side
    15,145.28x = 200,089,337.55
  5. Step 5: Solve for x
    x = 200,089,337.55/15,145.28
  6. Step 6: Final answer
    x = 13,211.33

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Half scale
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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.