Home / 10,227.20-15,331.68-3,985.74

Finding the Fourth Proportional to 10,227.20, 15,331.68 and 3,985.74

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Solution

The fourth proportional to 10,227.20, 15,331.68 and 3,985.74 is: 5,975.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,227.20 : 15,331.68 = 3,985.74 : x
  2. Step 2: Convert to fraction form
    10,227.20/15,331.68 = 3,985.74/x
  3. Step 3: Cross multiply
    10,227.20x = 15,331.68 × 3,985.74
  4. Step 4: Simplify right side
    10,227.20x = 61,108,090.24
  5. Step 5: Solve for x
    x = 61,108,090.24/10,227.20
  6. Step 6: Final answer
    x = 5,975.06

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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.