Home / 18,145.53-27,209.52-7,612.56

Finding the Fourth Proportional to 18,145.53, 27,209.52 and 7,612.56

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Solution

The fourth proportional to 18,145.53, 27,209.52 and 7,612.56 is: 11,415.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145.53 : 27,209.52 = 7,612.56 : x
  2. Step 2: Convert to fraction form
    18,145.53/27,209.52 = 7,612.56/x
  3. Step 3: Cross multiply
    18,145.53x = 27,209.52 × 7,612.56
  4. Step 4: Simplify right side
    18,145.53x = 207,134,103.57
  5. Step 5: Solve for x
    x = 207,134,103.57/18,145.53
  6. Step 6: Final answer
    x = 11,415.16

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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.