Home / 12,586.03-18,877.82-3,821.02

Finding the Fourth Proportional to 12,586.03, 18,877.82 and 3,821.02

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Solution

The fourth proportional to 12,586.03, 18,877.82 and 3,821.02 is: 5,731.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,586.03 : 18,877.82 = 3,821.02 : x
  2. Step 2: Convert to fraction form
    12,586.03/18,877.82 = 3,821.02/x
  3. Step 3: Cross multiply
    12,586.03x = 18,877.82 × 3,821.02
  4. Step 4: Simplify right side
    12,586.03x = 72,132,490.13
  5. Step 5: Solve for x
    x = 72,132,490.13/12,586.03
  6. Step 6: Final answer
    x = 5,731.16

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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.