Home / 18,342.72-27,512.64-6,658.56

Finding the Fourth Proportional to 18,342.72, 27,512.64 and 6,658.56

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Solution

The fourth proportional to 18,342.72, 27,512.64 and 6,658.56 is: 9,987.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.72 : 27,512.64 = 6,658.56 : x
  2. Step 2: Convert to fraction form
    18,342.72/27,512.64 = 6,658.56/x
  3. Step 3: Cross multiply
    18,342.72x = 27,512.64 × 6,658.56
  4. Step 4: Simplify right side
    18,342.72x = 183,194,564.20
  5. Step 5: Solve for x
    x = 183,194,564.20/18,342.72
  6. Step 6: Final answer
    x = 9,987.32

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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.