Home / 8,947.55-13,396.59-6,749.61

Finding the Fourth Proportional to 8,947.55, 13,396.59 and 6,749.61

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Solution

The fourth proportional to 8,947.55, 13,396.59 and 6,749.61 is: 10,105.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947.55 : 13,396.59 = 6,749.61 : x
  2. Step 2: Convert to fraction form
    8,947.55/13,396.59 = 6,749.61/x
  3. Step 3: Cross multiply
    8,947.55x = 13,396.59 × 6,749.61
  4. Step 4: Simplify right side
    8,947.55x = 90,421,757.83
  5. Step 5: Solve for x
    x = 90,421,757.83/8,947.55
  6. Step 6: Final answer
    x = 10,105.76

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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.