Home / 18,934.24-28,414.32-9,080.32

Finding the Fourth Proportional to 18,934.24, 28,414.32 and 9,080.32

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Solution

The fourth proportional to 18,934.24, 28,414.32 and 9,080.32 is: 13,626.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.24 : 28,414.32 = 9,080.32 : x
  2. Step 2: Convert to fraction form
    18,934.24/28,414.32 = 9,080.32/x
  3. Step 3: Cross multiply
    18,934.24x = 28,414.32 × 9,080.32
  4. Step 4: Simplify right side
    18,934.24x = 258,011,118.18
  5. Step 5: Solve for x
    x = 258,011,118.18/18,934.24
  6. Step 6: Final answer
    x = 13,626.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.