Home / 10,102.12-15,155.48-3,082.76

Finding the Fourth Proportional to 10,102.12, 15,155.48 and 3,082.76

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Solution

The fourth proportional to 10,102.12, 15,155.48 and 3,082.76 is: 4,624.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,102.12 : 15,155.48 = 3,082.76 : x
  2. Step 2: Convert to fraction form
    10,102.12/15,155.48 = 3,082.76/x
  3. Step 3: Cross multiply
    10,102.12x = 15,155.48 × 3,082.76
  4. Step 4: Simplify right side
    10,102.12x = 46,720,730.00
  5. Step 5: Solve for x
    x = 46,720,730.00/10,102.12
  6. Step 6: Final answer
    x = 4,624.85

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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.