Home / 18,126.22-27,188.50-6,439.26

Finding the Fourth Proportional to 18,126.22, 27,188.50 and 6,439.26

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Solution

The fourth proportional to 18,126.22, 27,188.50 and 6,439.26 is: 9,658.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,126.22 : 27,188.50 = 6,439.26 : x
  2. Step 2: Convert to fraction form
    18,126.22/27,188.50 = 6,439.26/x
  3. Step 3: Cross multiply
    18,126.22x = 27,188.50 × 6,439.26
  4. Step 4: Simplify right side
    18,126.22x = 175,073,820.51
  5. Step 5: Solve for x
    x = 175,073,820.51/18,126.22
  6. Step 6: Final answer
    x = 9,658.60

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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.