Home / 15,147.55-22,725.31-5,286.81

Finding the Fourth Proportional to 15,147.55, 22,725.31 and 5,286.81

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Solution

The fourth proportional to 15,147.55, 22,725.31 and 5,286.81 is: 7,931.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,147.55 : 22,725.31 = 5,286.81 : x
  2. Step 2: Convert to fraction form
    15,147.55/22,725.31 = 5,286.81/x
  3. Step 3: Cross multiply
    15,147.55x = 22,725.31 × 5,286.81
  4. Step 4: Simplify right side
    15,147.55x = 120,144,396.16
  5. Step 5: Solve for x
    x = 120,144,396.16/15,147.55
  6. Step 6: Final answer
    x = 7,931.61

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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.