Home / 15,213.93-22,822.31-4,120.71

Finding the Fourth Proportional to 15,213.93, 22,822.31 and 4,120.71

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Solution

The fourth proportional to 15,213.93, 22,822.31 and 4,120.71 is: 6,181.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,213.93 : 22,822.31 = 4,120.71 : x
  2. Step 2: Convert to fraction form
    15,213.93/22,822.31 = 4,120.71/x
  3. Step 3: Cross multiply
    15,213.93x = 22,822.31 × 4,120.71
  4. Step 4: Simplify right side
    15,213.93x = 94,044,121.04
  5. Step 5: Solve for x
    x = 94,044,121.04/15,213.93
  6. Step 6: Final answer
    x = 6,181.45

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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.