Home / 14,375.60-21,563.40-3,987.36

Finding the Fourth Proportional to 14,375.60, 21,563.40 and 3,987.36

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Solution

The fourth proportional to 14,375.60, 21,563.40 and 3,987.36 is: 5,981.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,375.60 : 21,563.40 = 3,987.36 : x
  2. Step 2: Convert to fraction form
    14,375.60/21,563.40 = 3,987.36/x
  3. Step 3: Cross multiply
    14,375.60x = 21,563.40 × 3,987.36
  4. Step 4: Simplify right side
    14,375.60x = 85,981,038.62
  5. Step 5: Solve for x
    x = 85,981,038.62/14,375.60
  6. Step 6: Final answer
    x = 5,981.04

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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.