Home / 13,913.22-20,869.88-4,052.75

Finding the Fourth Proportional to 13,913.22, 20,869.88 and 4,052.75

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Solution

The fourth proportional to 13,913.22, 20,869.88 and 4,052.75 is: 6,079.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.22 : 20,869.88 = 4,052.75 : x
  2. Step 2: Convert to fraction form
    13,913.22/20,869.88 = 4,052.75/x
  3. Step 3: Cross multiply
    13,913.22x = 20,869.88 × 4,052.75
  4. Step 4: Simplify right side
    13,913.22x = 84,580,281.56
  5. Step 5: Solve for x
    x = 84,580,281.56/13,913.22
  6. Step 6: Final answer
    x = 6,079.13

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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.