Home / 18,876.11-28,314.23-5,728.46

Finding the Fourth Proportional to 18,876.11, 28,314.23 and 5,728.46

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Solution

The fourth proportional to 18,876.11, 28,314.23 and 5,728.46 is: 8,592.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,876.11 : 28,314.23 = 5,728.46 : x
  2. Step 2: Convert to fraction form
    18,876.11/28,314.23 = 5,728.46/x
  3. Step 3: Cross multiply
    18,876.11x = 28,314.23 × 5,728.46
  4. Step 4: Simplify right side
    18,876.11x = 162,196,763.77
  5. Step 5: Solve for x
    x = 162,196,763.77/18,876.11
  6. Step 6: Final answer
    x = 8,592.70

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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.