Home / 11,131.19-15,358.50-6,654.18

Finding the Fourth Proportional to 11,131.19, 15,358.50 and 6,654.18

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Solution

The fourth proportional to 11,131.19, 15,358.50 and 6,654.18 is: 9,181.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.19 : 15,358.50 = 6,654.18 : x
  2. Step 2: Convert to fraction form
    11,131.19/15,358.50 = 6,654.18/x
  3. Step 3: Cross multiply
    11,131.19x = 15,358.50 × 6,654.18
  4. Step 4: Simplify right side
    11,131.19x = 102,198,223.53
  5. Step 5: Solve for x
    x = 102,198,223.53/11,131.19
  6. Step 6: Final answer
    x = 9,181.25

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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.