Home / 10,919.22-16,381.80-4,679.52

Finding the Fourth Proportional to 10,919.22, 16,381.80 and 4,679.52

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Solution

The fourth proportional to 10,919.22, 16,381.80 and 4,679.52 is: 7,020.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,919.22 : 16,381.80 = 4,679.52 : x
  2. Step 2: Convert to fraction form
    10,919.22/16,381.80 = 4,679.52/x
  3. Step 3: Cross multiply
    10,919.22x = 16,381.80 × 4,679.52
  4. Step 4: Simplify right side
    10,919.22x = 76,658,960.74
  5. Step 5: Solve for x
    x = 76,658,960.74/10,919.22
  6. Step 6: Final answer
    x = 7,020.55

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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.