Home / 15,195.18-20,970.41-8,482.12

Finding the Fourth Proportional to 15,195.18, 20,970.41 and 8,482.12

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Solution

The fourth proportional to 15,195.18, 20,970.41 and 8,482.12 is: 11,705.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,195.18 : 20,970.41 = 8,482.12 : x
  2. Step 2: Convert to fraction form
    15,195.18/20,970.41 = 8,482.12/x
  3. Step 3: Cross multiply
    15,195.18x = 20,970.41 × 8,482.12
  4. Step 4: Simplify right side
    15,195.18x = 177,873,439.23
  5. Step 5: Solve for x
    x = 177,873,439.23/15,195.18
  6. Step 6: Final answer
    x = 11,705.91

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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.