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Finding the Fourth Proportional to 11,867.13, 17,800.71 and 8,158.14

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Solution

The fourth proportional to 11,867.13, 17,800.71 and 8,158.14 is: 12,237.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,867.13 : 17,800.71 = 8,158.14 : x
  2. Step 2: Convert to fraction form
    11,867.13/17,800.71 = 8,158.14/x
  3. Step 3: Cross multiply
    11,867.13x = 17,800.71 × 8,158.14
  4. Step 4: Simplify right side
    11,867.13x = 145,220,684.28
  5. Step 5: Solve for x
    x = 145,220,684.28/11,867.13
  6. Step 6: Final answer
    x = 12,237.22

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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.