Home / 12,620.24-18,934.29-5,228.18

Finding the Fourth Proportional to 12,620.24, 18,934.29 and 5,228.18

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Solution

The fourth proportional to 12,620.24, 18,934.29 and 5,228.18 is: 7,843.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,620.24 : 18,934.29 = 5,228.18 : x
  2. Step 2: Convert to fraction form
    12,620.24/18,934.29 = 5,228.18/x
  3. Step 3: Cross multiply
    12,620.24x = 18,934.29 × 5,228.18
  4. Step 4: Simplify right side
    12,620.24x = 98,991,781.62
  5. Step 5: Solve for x
    x = 98,991,781.62/12,620.24
  6. Step 6: Final answer
    x = 7,843.89

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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.