Home / 6,857.10-10,277.55-5,123.70

Finding the Fourth Proportional to 6,857.10, 10,277.55 and 5,123.70

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Solution

The fourth proportional to 6,857.10, 10,277.55 and 5,123.70 is: 7,679.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,857.10 : 10,277.55 = 5,123.70 : x
  2. Step 2: Convert to fraction form
    6,857.10/10,277.55 = 5,123.70/x
  3. Step 3: Cross multiply
    6,857.10x = 10,277.55 × 5,123.70
  4. Step 4: Simplify right side
    6,857.10x = 52,659,082.94
  5. Step 5: Solve for x
    x = 52,659,082.94/6,857.10
  6. Step 6: Final answer
    x = 7,679.50

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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.