Home / 12,620.29-18,934.08-5,225.14

Finding the Fourth Proportional to 12,620.29, 18,934.08 and 5,225.14

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Solution

The fourth proportional to 12,620.29, 18,934.08 and 5,225.14 is: 7,839.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,620.29 : 18,934.08 = 5,225.14 : x
  2. Step 2: Convert to fraction form
    12,620.29/18,934.08 = 5,225.14/x
  3. Step 3: Cross multiply
    12,620.29x = 18,934.08 × 5,225.14
  4. Step 4: Simplify right side
    12,620.29x = 98,933,218.77
  5. Step 5: Solve for x
    x = 98,933,218.77/12,620.29
  6. Step 6: Final answer
    x = 7,839.22

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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.