Home / 14,122.33-19,487.58-7,747.90

Finding the Fourth Proportional to 14,122.33, 19,487.58 and 7,747.90

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Solution

The fourth proportional to 14,122.33, 19,487.58 and 7,747.90 is: 10,691.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.33 : 19,487.58 = 7,747.90 : x
  2. Step 2: Convert to fraction form
    14,122.33/19,487.58 = 7,747.90/x
  3. Step 3: Cross multiply
    14,122.33x = 19,487.58 × 7,747.90
  4. Step 4: Simplify right side
    14,122.33x = 150,987,821.08
  5. Step 5: Solve for x
    x = 150,987,821.08/14,122.33
  6. Step 6: Final answer
    x = 10,691.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.