Home / 13,387.92-18,474.84-8,082.24

Finding the Fourth Proportional to 13,387.92, 18,474.84 and 8,082.24

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Solution

The fourth proportional to 13,387.92, 18,474.84 and 8,082.24 is: 11,153.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.92 : 18,474.84 = 8,082.24 : x
  2. Step 2: Convert to fraction form
    13,387.92/18,474.84 = 8,082.24/x
  3. Step 3: Cross multiply
    13,387.92x = 18,474.84 × 8,082.24
  4. Step 4: Simplify right side
    13,387.92x = 149,318,090.84
  5. Step 5: Solve for x
    x = 149,318,090.84/13,387.92
  6. Step 6: Final answer
    x = 11,153.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.