Home / 14,122.48-21,177.56-4,760.75

Finding the Fourth Proportional to 14,122.48, 21,177.56 and 4,760.75

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Solution

The fourth proportional to 14,122.48, 21,177.56 and 4,760.75 is: 7,139.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.48 : 21,177.56 = 4,760.75 : x
  2. Step 2: Convert to fraction form
    14,122.48/21,177.56 = 4,760.75/x
  3. Step 3: Cross multiply
    14,122.48x = 21,177.56 × 4,760.75
  4. Step 4: Simplify right side
    14,122.48x = 100,821,133.62
  5. Step 5: Solve for x
    x = 100,821,133.62/14,122.48
  6. Step 6: Final answer
    x = 7,139.05

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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.