Home / 15,195.26-20,970.51-8,482.20

Finding the Fourth Proportional to 15,195.26, 20,970.51 and 8,482.20

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Solution

The fourth proportional to 15,195.26, 20,970.51 and 8,482.20 is: 11,706.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,195.26 : 20,970.51 = 8,482.20 : x
  2. Step 2: Convert to fraction form
    15,195.26/20,970.51 = 8,482.20/x
  3. Step 3: Cross multiply
    15,195.26x = 20,970.51 × 8,482.20
  4. Step 4: Simplify right side
    15,195.26x = 177,876,059.92
  5. Step 5: Solve for x
    x = 177,876,059.92/15,195.26
  6. Step 6: Final answer
    x = 11,706.02

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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.