Home / 8,314.20-12,460.88-4,155.38

Finding the Fourth Proportional to 8,314.20, 12,460.88 and 4,155.38

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Solution

The fourth proportional to 8,314.20, 12,460.88 and 4,155.38 is: 6,227.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,314.20 : 12,460.88 = 4,155.38 : x
  2. Step 2: Convert to fraction form
    8,314.20/12,460.88 = 4,155.38/x
  3. Step 3: Cross multiply
    8,314.20x = 12,460.88 × 4,155.38
  4. Step 4: Simplify right side
    8,314.20x = 51,779,608.45
  5. Step 5: Solve for x
    x = 51,779,608.45/8,314.20
  6. Step 6: Final answer
    x = 6,227.85

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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.