Home / 15,141.80-22,704.60-5,281.40

Finding the Fourth Proportional to 15,141.80, 22,704.60 and 5,281.40

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Solution

The fourth proportional to 15,141.80, 22,704.60 and 5,281.40 is: 7,919.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,141.80 : 22,704.60 = 5,281.40 : x
  2. Step 2: Convert to fraction form
    15,141.80/22,704.60 = 5,281.40/x
  3. Step 3: Cross multiply
    15,141.80x = 22,704.60 × 5,281.40
  4. Step 4: Simplify right side
    15,141.80x = 119,912,074.44
  5. Step 5: Solve for x
    x = 119,912,074.44/15,141.80
  6. Step 6: Final answer
    x = 7,919.27

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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.