Home / 13,459.76-18,576.46-8,082.56

Finding the Fourth Proportional to 13,459.76, 18,576.46 and 8,082.56

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Solution

The fourth proportional to 13,459.76, 18,576.46 and 8,082.56 is: 11,155.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.76 : 18,576.46 = 8,082.56 : x
  2. Step 2: Convert to fraction form
    13,459.76/18,576.46 = 8,082.56/x
  3. Step 3: Cross multiply
    13,459.76x = 18,576.46 × 8,082.56
  4. Step 4: Simplify right side
    13,459.76x = 150,145,352.54
  5. Step 5: Solve for x
    x = 150,145,352.54/13,459.76
  6. Step 6: Final answer
    x = 11,155.13

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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.