Home / 18,129.57-27,194.35-6,443.25

Finding the Fourth Proportional to 18,129.57, 27,194.35 and 6,443.25

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Solution

The fourth proportional to 18,129.57, 27,194.35 and 6,443.25 is: 9,664.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.57 : 27,194.35 = 6,443.25 : x
  2. Step 2: Convert to fraction form
    18,129.57/27,194.35 = 6,443.25/x
  3. Step 3: Cross multiply
    18,129.57x = 27,194.35 × 6,443.25
  4. Step 4: Simplify right side
    18,129.57x = 175,219,827.45
  5. Step 5: Solve for x
    x = 175,219,827.45/18,129.57
  6. Step 6: Final answer
    x = 9,664.87

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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.