Home / 12,082.50-18,133.47-6,240.78

Finding the Fourth Proportional to 12,082.50, 18,133.47 and 6,240.78

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Solution

The fourth proportional to 12,082.50, 18,133.47 and 6,240.78 is: 9,366.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,082.50 : 18,133.47 = 6,240.78 : x
  2. Step 2: Convert to fraction form
    12,082.50/18,133.47 = 6,240.78/x
  3. Step 3: Cross multiply
    12,082.50x = 18,133.47 × 6,240.78
  4. Step 4: Simplify right side
    12,082.50x = 113,166,996.91
  5. Step 5: Solve for x
    x = 113,166,996.91/12,082.50
  6. Step 6: Final answer
    x = 9,366.19

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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.