Home / 12,191.13-18,287.21-5,943.71

Finding the Fourth Proportional to 12,191.13, 18,287.21 and 5,943.71

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Solution

The fourth proportional to 12,191.13, 18,287.21 and 5,943.71 is: 8,915.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.13 : 18,287.21 = 5,943.71 : x
  2. Step 2: Convert to fraction form
    12,191.13/18,287.21 = 5,943.71/x
  3. Step 3: Cross multiply
    12,191.13x = 18,287.21 × 5,943.71
  4. Step 4: Simplify right side
    12,191.13x = 108,693,774.08
  5. Step 5: Solve for x
    x = 108,693,774.08/12,191.13
  6. Step 6: Final answer
    x = 8,915.81

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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.