Home / 11,118.12-16,652.13-7,801.15

Finding the Fourth Proportional to 11,118.12, 16,652.13 and 7,801.15

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Solution

The fourth proportional to 11,118.12, 16,652.13 and 7,801.15 is: 11,684.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.12 : 16,652.13 = 7,801.15 : x
  2. Step 2: Convert to fraction form
    11,118.12/16,652.13 = 7,801.15/x
  3. Step 3: Cross multiply
    11,118.12x = 16,652.13 × 7,801.15
  4. Step 4: Simplify right side
    11,118.12x = 129,905,680.69
  5. Step 5: Solve for x
    x = 129,905,680.69/11,118.12
  6. Step 6: Final answer
    x = 11,684.14

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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.