Home / 13,398.66-20,082.18-4,628.78

Finding the Fourth Proportional to 13,398.66, 20,082.18 and 4,628.78

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Solution

The fourth proportional to 13,398.66, 20,082.18 and 4,628.78 is: 6,937.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,398.66 : 20,082.18 = 4,628.78 : x
  2. Step 2: Convert to fraction form
    13,398.66/20,082.18 = 4,628.78/x
  3. Step 3: Cross multiply
    13,398.66x = 20,082.18 × 4,628.78
  4. Step 4: Simplify right side
    13,398.66x = 92,955,993.14
  5. Step 5: Solve for x
    x = 92,955,993.14/13,398.66
  6. Step 6: Final answer
    x = 6,937.71

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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.