Home / 11,960.28-18,009.90-8,862.23

Finding the Fourth Proportional to 11,960.28, 18,009.90 and 8,862.23

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Solution

The fourth proportional to 11,960.28, 18,009.90 and 8,862.23 is: 13,344.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,960.28 : 18,009.90 = 8,862.23 : x
  2. Step 2: Convert to fraction form
    11,960.28/18,009.90 = 8,862.23/x
  3. Step 3: Cross multiply
    11,960.28x = 18,009.90 × 8,862.23
  4. Step 4: Simplify right side
    11,960.28x = 159,607,876.08
  5. Step 5: Solve for x
    x = 159,607,876.08/11,960.28
  6. Step 6: Final answer
    x = 13,344.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.