Home / 10,217.16-15,326.54-2,821.56

Finding the Fourth Proportional to 10,217.16, 15,326.54 and 2,821.56

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Solution

The fourth proportional to 10,217.16, 15,326.54 and 2,821.56 is: 4,232.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,217.16 : 15,326.54 = 2,821.56 : x
  2. Step 2: Convert to fraction form
    10,217.16/15,326.54 = 2,821.56/x
  3. Step 3: Cross multiply
    10,217.16x = 15,326.54 × 2,821.56
  4. Step 4: Simplify right side
    10,217.16x = 43,244,752.20
  5. Step 5: Solve for x
    x = 43,244,752.20/10,217.16
  6. Step 6: Final answer
    x = 4,232.56

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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.