Home / 10,238.32-15,357.49-2,842.78

Finding the Fourth Proportional to 10,238.32, 15,357.49 and 2,842.78

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Solution

The fourth proportional to 10,238.32, 15,357.49 and 2,842.78 is: 4,264.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,238.32 : 15,357.49 = 2,842.78 : x
  2. Step 2: Convert to fraction form
    10,238.32/15,357.49 = 2,842.78/x
  3. Step 3: Cross multiply
    10,238.32x = 15,357.49 × 2,842.78
  4. Step 4: Simplify right side
    10,238.32x = 43,658,019.63
  5. Step 5: Solve for x
    x = 43,658,019.63/10,238.32
  6. Step 6: Final answer
    x = 4,264.18

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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.