Home / 8,974.50-13,460.13-3,132.78

Finding the Fourth Proportional to 8,974.50, 13,460.13 and 3,132.78

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Solution

The fourth proportional to 8,974.50, 13,460.13 and 3,132.78 is: 4,698.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974.50 : 13,460.13 = 3,132.78 : x
  2. Step 2: Convert to fraction form
    8,974.50/13,460.13 = 3,132.78/x
  3. Step 3: Cross multiply
    8,974.50x = 13,460.13 × 3,132.78
  4. Step 4: Simplify right side
    8,974.50x = 42,167,610.40
  5. Step 5: Solve for x
    x = 42,167,610.40/8,974.50
  6. Step 6: Final answer
    x = 4,698.60

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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.