Home / 8,679.42-13,011.30-7,371.54

Finding the Fourth Proportional to 8,679.42, 13,011.30 and 7,371.54

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Solution

The fourth proportional to 8,679.42, 13,011.30 and 7,371.54 is: 11,050.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.42 : 13,011.30 = 7,371.54 : x
  2. Step 2: Convert to fraction form
    8,679.42/13,011.30 = 7,371.54/x
  3. Step 3: Cross multiply
    8,679.42x = 13,011.30 × 7,371.54
  4. Step 4: Simplify right side
    8,679.42x = 95,913,318.40
  5. Step 5: Solve for x
    x = 95,913,318.40/8,679.42
  6. Step 6: Final answer
    x = 11,050.66

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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.