Home / 15,161.44-20,915.52-9,857.92

Finding the Fourth Proportional to 15,161.44, 20,915.52 and 9,857.92

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Solution

The fourth proportional to 15,161.44, 20,915.52 and 9,857.92 is: 13,599.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,161.44 : 20,915.52 = 9,857.92 : x
  2. Step 2: Convert to fraction form
    15,161.44/20,915.52 = 9,857.92/x
  3. Step 3: Cross multiply
    15,161.44x = 20,915.52 × 9,857.92
  4. Step 4: Simplify right side
    15,161.44x = 206,183,522.92
  5. Step 5: Solve for x
    x = 206,183,522.92/15,161.44
  6. Step 6: Final answer
    x = 13,599.20

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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.