Home / 8,919.28-13,373.91-3,657.94

Finding the Fourth Proportional to 8,919.28, 13,373.91 and 3,657.94

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Solution

The fourth proportional to 8,919.28, 13,373.91 and 3,657.94 is: 5,484.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.28 : 13,373.91 = 3,657.94 : x
  2. Step 2: Convert to fraction form
    8,919.28/13,373.91 = 3,657.94/x
  3. Step 3: Cross multiply
    8,919.28x = 13,373.91 × 3,657.94
  4. Step 4: Simplify right side
    8,919.28x = 48,920,960.35
  5. Step 5: Solve for x
    x = 48,920,960.35/8,919.28
  6. Step 6: Final answer
    x = 5,484.86

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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.