Home / 10,218.51-15,328.64-2,822.97

Finding the Fourth Proportional to 10,218.51, 15,328.64 and 2,822.97

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Solution

The fourth proportional to 10,218.51, 15,328.64 and 2,822.97 is: 4,234.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.51 : 15,328.64 = 2,822.97 : x
  2. Step 2: Convert to fraction form
    10,218.51/15,328.64 = 2,822.97/x
  3. Step 3: Cross multiply
    10,218.51x = 15,328.64 × 2,822.97
  4. Step 4: Simplify right side
    10,218.51x = 43,272,290.86
  5. Step 5: Solve for x
    x = 43,272,290.86/10,218.51
  6. Step 6: Final answer
    x = 4,234.70

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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.