Home / 8,691.24-11,993.82-4,712.28

Finding the Fourth Proportional to 8,691.24, 11,993.82 and 4,712.28

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Solution

The fourth proportional to 8,691.24, 11,993.82 and 4,712.28 is: 6,502.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691.24 : 11,993.82 = 4,712.28 : x
  2. Step 2: Convert to fraction form
    8,691.24/11,993.82 = 4,712.28/x
  3. Step 3: Cross multiply
    8,691.24x = 11,993.82 × 4,712.28
  4. Step 4: Simplify right side
    8,691.24x = 56,518,238.11
  5. Step 5: Solve for x
    x = 56,518,238.11/8,691.24
  6. Step 6: Final answer
    x = 6,502.90

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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.