Home / 10,218.15-15,329.05-2,822.45

Finding the Fourth Proportional to 10,218.15, 15,329.05 and 2,822.45

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Solution

The fourth proportional to 10,218.15, 15,329.05 and 2,822.45 is: 4,234.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.15 : 15,329.05 = 2,822.45 : x
  2. Step 2: Convert to fraction form
    10,218.15/15,329.05 = 2,822.45/x
  3. Step 3: Cross multiply
    10,218.15x = 15,329.05 × 2,822.45
  4. Step 4: Simplify right side
    10,218.15x = 43,265,393.47
  5. Step 5: Solve for x
    x = 43,265,393.47/10,218.15
  6. Step 6: Final answer
    x = 4,234.17

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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.