Home / 10,238.20-15,357.49-3,218.08

Finding the Fourth Proportional to 10,238.20, 15,357.49 and 3,218.08

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Solution

The fourth proportional to 10,238.20, 15,357.49 and 3,218.08 is: 4,827.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,238.20 : 15,357.49 = 3,218.08 : x
  2. Step 2: Convert to fraction form
    10,238.20/15,357.49 = 3,218.08/x
  3. Step 3: Cross multiply
    10,238.20x = 15,357.49 × 3,218.08
  4. Step 4: Simplify right side
    10,238.20x = 49,421,631.42
  5. Step 5: Solve for x
    x = 49,421,631.42/10,238.20
  6. Step 6: Final answer
    x = 4,827.18

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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.