Home / 10,221.23-15,257.24-8,769.71

Finding the Fourth Proportional to 10,221.23, 15,257.24 and 8,769.71

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Solution

The fourth proportional to 10,221.23, 15,257.24 and 8,769.71 is: 13,090.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.23 : 15,257.24 = 8,769.71 : x
  2. Step 2: Convert to fraction form
    10,221.23/15,257.24 = 8,769.71/x
  3. Step 3: Cross multiply
    10,221.23x = 15,257.24 × 8,769.71
  4. Step 4: Simplify right side
    10,221.23x = 133,801,570.20
  5. Step 5: Solve for x
    x = 133,801,570.20/10,221.23
  6. Step 6: Final answer
    x = 13,090.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.