Home / 18,972.06-28,454.73-5,122.14

Finding the Fourth Proportional to 18,972.06, 28,454.73 and 5,122.14

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Solution

The fourth proportional to 18,972.06, 28,454.73 and 5,122.14 is: 7,682.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972.06 : 28,454.73 = 5,122.14 : x
  2. Step 2: Convert to fraction form
    18,972.06/28,454.73 = 5,122.14/x
  3. Step 3: Cross multiply
    18,972.06x = 28,454.73 × 5,122.14
  4. Step 4: Simplify right side
    18,972.06x = 145,749,110.72
  5. Step 5: Solve for x
    x = 145,749,110.72/18,972.06
  6. Step 6: Final answer
    x = 7,682.30

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1.5x scale

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.