Home / 8,815.20-12,164.19-5,037.62

Finding the Fourth Proportional to 8,815.20, 12,164.19 and 5,037.62

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Solution

The fourth proportional to 8,815.20, 12,164.19 and 5,037.62 is: 6,951.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.20 : 12,164.19 = 5,037.62 : x
  2. Step 2: Convert to fraction form
    8,815.20/12,164.19 = 5,037.62/x
  3. Step 3: Cross multiply
    8,815.20x = 12,164.19 × 5,037.62
  4. Step 4: Simplify right side
    8,815.20x = 61,278,506.01
  5. Step 5: Solve for x
    x = 61,278,506.01/8,815.20
  6. Step 6: Final answer
    x = 6,951.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.