Home / 10,972.44-15,124.20-8,578.26

Finding the Fourth Proportional to 10,972.44, 15,124.20 and 8,578.26

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Solution

The fourth proportional to 10,972.44, 15,124.20 and 8,578.26 is: 11,824.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,972.44 : 15,124.20 = 8,578.26 : x
  2. Step 2: Convert to fraction form
    10,972.44/15,124.20 = 8,578.26/x
  3. Step 3: Cross multiply
    10,972.44x = 15,124.20 × 8,578.26
  4. Step 4: Simplify right side
    10,972.44x = 129,739,319.89
  5. Step 5: Solve for x
    x = 129,739,319.89/10,972.44
  6. Step 6: Final answer
    x = 11,824.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.