Home / 8,176.60-12,248.70-4,879.90

Finding the Fourth Proportional to 8,176.60, 12,248.70 and 4,879.90

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Solution

The fourth proportional to 8,176.60, 12,248.70 and 4,879.90 is: 7,310.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,176.60 : 12,248.70 = 4,879.90 : x
  2. Step 2: Convert to fraction form
    8,176.60/12,248.70 = 4,879.90/x
  3. Step 3: Cross multiply
    8,176.60x = 12,248.70 × 4,879.90
  4. Step 4: Simplify right side
    8,176.60x = 59,772,431.13
  5. Step 5: Solve for x
    x = 59,772,431.13/8,176.60
  6. Step 6: Final answer
    x = 7,310.18

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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.