Home / 15,999.80-22,077.20-9,284.04

Finding the Fourth Proportional to 15,999.80, 22,077.20 and 9,284.04

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Solution

The fourth proportional to 15,999.80, 22,077.20 and 9,284.04 is: 12,810.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.80 : 22,077.20 = 9,284.04 : x
  2. Step 2: Convert to fraction form
    15,999.80/22,077.20 = 9,284.04/x
  3. Step 3: Cross multiply
    15,999.80x = 22,077.20 × 9,284.04
  4. Step 4: Simplify right side
    15,999.80x = 204,965,631.10
  5. Step 5: Solve for x
    x = 204,965,631.10/15,999.80
  6. Step 6: Final answer
    x = 12,810.52

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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.