Home / 15,123.54-22,685.23-3,878.82

Finding the Fourth Proportional to 15,123.54, 22,685.23 and 3,878.82

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Solution

The fourth proportional to 15,123.54, 22,685.23 and 3,878.82 is: 5,818.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,123.54 : 22,685.23 = 3,878.82 : x
  2. Step 2: Convert to fraction form
    15,123.54/22,685.23 = 3,878.82/x
  3. Step 3: Cross multiply
    15,123.54x = 22,685.23 × 3,878.82
  4. Step 4: Simplify right side
    15,123.54x = 87,991,961.15
  5. Step 5: Solve for x
    x = 87,991,961.15/15,123.54
  6. Step 6: Final answer
    x = 5,818.21

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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.