Home / 11,286.68-15,575.56-6,318.68

Finding the Fourth Proportional to 11,286.68, 15,575.56 and 6,318.68

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Solution

The fourth proportional to 11,286.68, 15,575.56 and 6,318.68 is: 8,719.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.68 : 15,575.56 = 6,318.68 : x
  2. Step 2: Convert to fraction form
    11,286.68/15,575.56 = 6,318.68/x
  3. Step 3: Cross multiply
    11,286.68x = 15,575.56 × 6,318.68
  4. Step 4: Simplify right side
    11,286.68x = 98,416,979.46
  5. Step 5: Solve for x
    x = 98,416,979.46/11,286.68
  6. Step 6: Final answer
    x = 8,719.75

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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.