Home / 15,146.88-22,718.70-5,286.35

Finding the Fourth Proportional to 15,146.88, 22,718.70 and 5,286.35

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Solution

The fourth proportional to 15,146.88, 22,718.70 and 5,286.35 is: 7,928.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,146.88 : 22,718.70 = 5,286.35 : x
  2. Step 2: Convert to fraction form
    15,146.88/22,718.70 = 5,286.35/x
  3. Step 3: Cross multiply
    15,146.88x = 22,718.70 × 5,286.35
  4. Step 4: Simplify right side
    15,146.88x = 120,098,999.75
  5. Step 5: Solve for x
    x = 120,098,999.75/15,146.88
  6. Step 6: Final answer
    x = 7,928.96

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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.