Home / 8,074.54-12,108.61-3,143.46

Finding the Fourth Proportional to 8,074.54, 12,108.61 and 3,143.46

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Solution

The fourth proportional to 8,074.54, 12,108.61 and 3,143.46 is: 4,713.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,074.54 : 12,108.61 = 3,143.46 : x
  2. Step 2: Convert to fraction form
    8,074.54/12,108.61 = 3,143.46/x
  3. Step 3: Cross multiply
    8,074.54x = 12,108.61 × 3,143.46
  4. Step 4: Simplify right side
    8,074.54x = 38,062,931.19
  5. Step 5: Solve for x
    x = 38,062,931.19/8,074.54
  6. Step 6: Final answer
    x = 4,713.94

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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.