Home / 10,191.42-15,287.43-5,749.38

Finding the Fourth Proportional to 10,191.42, 15,287.43 and 5,749.38

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Solution

The fourth proportional to 10,191.42, 15,287.43 and 5,749.38 is: 8,624.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,191.42 : 15,287.43 = 5,749.38 : x
  2. Step 2: Convert to fraction form
    10,191.42/15,287.43 = 5,749.38/x
  3. Step 3: Cross multiply
    10,191.42x = 15,287.43 × 5,749.38
  4. Step 4: Simplify right side
    10,191.42x = 87,893,265.85
  5. Step 5: Solve for x
    x = 87,893,265.85/10,191.42
  6. Step 6: Final answer
    x = 8,624.24

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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.