Home / 11,857.64-17,781.28-4,456.92

Finding the Fourth Proportional to 11,857.64, 17,781.28 and 4,456.92

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Solution

The fourth proportional to 11,857.64, 17,781.28 and 4,456.92 is: 6,683.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,857.64 : 17,781.28 = 4,456.92 : x
  2. Step 2: Convert to fraction form
    11,857.64/17,781.28 = 4,456.92/x
  3. Step 3: Cross multiply
    11,857.64x = 17,781.28 × 4,456.92
  4. Step 4: Simplify right side
    11,857.64x = 79,249,742.46
  5. Step 5: Solve for x
    x = 79,249,742.46/11,857.64
  6. Step 6: Final answer
    x = 6,683.43

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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.