Home / 12,254.76-18,358.07-8,082.05

Finding the Fourth Proportional to 12,254.76, 18,358.07 and 8,082.05

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Solution

The fourth proportional to 12,254.76, 18,358.07 and 8,082.05 is: 12,107.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,254.76 : 18,358.07 = 8,082.05 : x
  2. Step 2: Convert to fraction form
    12,254.76/18,358.07 = 8,082.05/x
  3. Step 3: Cross multiply
    12,254.76x = 18,358.07 × 8,082.05
  4. Step 4: Simplify right side
    12,254.76x = 148,370,707.44
  5. Step 5: Solve for x
    x = 148,370,707.44/12,254.76
  6. Step 6: Final answer
    x = 12,107.19

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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.