Home / 8,191.26-12,278.66-4,680.14

Finding the Fourth Proportional to 8,191.26, 12,278.66 and 4,680.14

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Solution

The fourth proportional to 8,191.26, 12,278.66 and 4,680.14 is: 7,015.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,191.26 : 12,278.66 = 4,680.14 : x
  2. Step 2: Convert to fraction form
    8,191.26/12,278.66 = 4,680.14/x
  3. Step 3: Cross multiply
    8,191.26x = 12,278.66 × 4,680.14
  4. Step 4: Simplify right side
    8,191.26x = 57,465,763.02
  5. Step 5: Solve for x
    x = 57,465,763.02/8,191.26
  6. Step 6: Final answer
    x = 7,015.50

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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.