Home / 8,133.78-12,197.74-3,454.11

Finding the Fourth Proportional to 8,133.78, 12,197.74 and 3,454.11

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Solution

The fourth proportional to 8,133.78, 12,197.74 and 3,454.11 is: 5,179.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,133.78 : 12,197.74 = 3,454.11 : x
  2. Step 2: Convert to fraction form
    8,133.78/12,197.74 = 3,454.11/x
  3. Step 3: Cross multiply
    8,133.78x = 12,197.74 × 3,454.11
  4. Step 4: Simplify right side
    8,133.78x = 42,132,335.71
  5. Step 5: Solve for x
    x = 42,132,335.71/8,133.78
  6. Step 6: Final answer
    x = 5,179.92

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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.