Home / 11,286.28-15,569.88-7,308.70

Finding the Fourth Proportional to 11,286.28, 15,569.88 and 7,308.70

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Solution

The fourth proportional to 11,286.28, 15,569.88 and 7,308.70 is: 10,082.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.28 : 15,569.88 = 7,308.70 : x
  2. Step 2: Convert to fraction form
    11,286.28/15,569.88 = 7,308.70/x
  3. Step 3: Cross multiply
    11,286.28x = 15,569.88 × 7,308.70
  4. Step 4: Simplify right side
    11,286.28x = 113,795,581.96
  5. Step 5: Solve for x
    x = 113,795,581.96/11,286.28
  6. Step 6: Final answer
    x = 10,082.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.