Home / 8,114.87-12,178.46-5,476.13

Finding the Fourth Proportional to 8,114.87, 12,178.46 and 5,476.13

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Solution

The fourth proportional to 8,114.87, 12,178.46 and 5,476.13 is: 8,218.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,114.87 : 12,178.46 = 5,476.13 : x
  2. Step 2: Convert to fraction form
    8,114.87/12,178.46 = 5,476.13/x
  3. Step 3: Cross multiply
    8,114.87x = 12,178.46 × 5,476.13
  4. Step 4: Simplify right side
    8,114.87x = 66,690,741.89
  5. Step 5: Solve for x
    x = 66,690,741.89/8,114.87
  6. Step 6: Final answer
    x = 8,218.34

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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.