Home / 8,472.24-11,691.99-5,114.40

Finding the Fourth Proportional to 8,472.24, 11,691.99 and 5,114.40

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Solution

The fourth proportional to 8,472.24, 11,691.99 and 5,114.40 is: 7,058.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.24 : 11,691.99 = 5,114.40 : x
  2. Step 2: Convert to fraction form
    8,472.24/11,691.99 = 5,114.40/x
  3. Step 3: Cross multiply
    8,472.24x = 11,691.99 × 5,114.40
  4. Step 4: Simplify right side
    8,472.24x = 59,797,513.66
  5. Step 5: Solve for x
    x = 59,797,513.66/8,472.24
  6. Step 6: Final answer
    x = 7,058.05

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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.