Home / 8,083.20-12,130.56-7,299.84

Finding the Fourth Proportional to 8,083.20, 12,130.56 and 7,299.84

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Solution

The fourth proportional to 8,083.20, 12,130.56 and 7,299.84 is: 10,954.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,083.20 : 12,130.56 = 7,299.84 : x
  2. Step 2: Convert to fraction form
    8,083.20/12,130.56 = 7,299.84/x
  3. Step 3: Cross multiply
    8,083.20x = 12,130.56 × 7,299.84
  4. Step 4: Simplify right side
    8,083.20x = 88,551,147.11
  5. Step 5: Solve for x
    x = 88,551,147.11/8,083.20
  6. Step 6: Final answer
    x = 10,954.96

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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.