Home / 10,578.40-15,861.22-5,584.75

Finding the Fourth Proportional to 10,578.40, 15,861.22 and 5,584.75

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Solution

The fourth proportional to 10,578.40, 15,861.22 and 5,584.75 is: 8,373.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,578.40 : 15,861.22 = 5,584.75 : x
  2. Step 2: Convert to fraction form
    10,578.40/15,861.22 = 5,584.75/x
  3. Step 3: Cross multiply
    10,578.40x = 15,861.22 × 5,584.75
  4. Step 4: Simplify right side
    10,578.40x = 88,580,894.78
  5. Step 5: Solve for x
    x = 88,580,894.78/10,578.40
  6. Step 6: Final answer
    x = 8,373.75

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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.