Home / 10,082.61-15,123.90-2,687.10

Finding the Fourth Proportional to 10,082.61, 15,123.90 and 2,687.10

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Solution

The fourth proportional to 10,082.61, 15,123.90 and 2,687.10 is: 4,030.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,082.61 : 15,123.90 = 2,687.10 : x
  2. Step 2: Convert to fraction form
    10,082.61/15,123.90 = 2,687.10/x
  3. Step 3: Cross multiply
    10,082.61x = 15,123.90 × 2,687.10
  4. Step 4: Simplify right side
    10,082.61x = 40,639,431.69
  5. Step 5: Solve for x
    x = 40,639,431.69/10,082.61
  6. Step 6: Final answer
    x = 4,030.65

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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.