Home / 8,101.48-12,131.19-6,938.95

Finding the Fourth Proportional to 8,101.48, 12,131.19 and 6,938.95

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Solution

The fourth proportional to 8,101.48, 12,131.19 and 6,938.95 is: 10,390.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,101.48 : 12,131.19 = 6,938.95 : x
  2. Step 2: Convert to fraction form
    8,101.48/12,131.19 = 6,938.95/x
  3. Step 3: Cross multiply
    8,101.48x = 12,131.19 × 6,938.95
  4. Step 4: Simplify right side
    8,101.48x = 84,177,690.52
  5. Step 5: Solve for x
    x = 84,177,690.52/8,101.48
  6. Step 6: Final answer
    x = 10,390.41

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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.