Home / 10,287.24-15,427.66-3,712.57

Finding the Fourth Proportional to 10,287.24, 15,427.66 and 3,712.57

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Solution

The fourth proportional to 10,287.24, 15,427.66 and 3,712.57 is: 5,567.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,287.24 : 15,427.66 = 3,712.57 : x
  2. Step 2: Convert to fraction form
    10,287.24/15,427.66 = 3,712.57/x
  3. Step 3: Cross multiply
    10,287.24x = 15,427.66 × 3,712.57
  4. Step 4: Simplify right side
    10,287.24x = 57,276,249.12
  5. Step 5: Solve for x
    x = 57,276,249.12/10,287.24
  6. Step 6: Final answer
    x = 5,567.70

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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.