Home / 18,143.10-27,217.08-6,456.42

Finding the Fourth Proportional to 18,143.10, 27,217.08 and 6,456.42

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Solution

The fourth proportional to 18,143.10, 27,217.08 and 6,456.42 is: 9,685.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.10 : 27,217.08 = 6,456.42 : x
  2. Step 2: Convert to fraction form
    18,143.10/27,217.08 = 6,456.42/x
  3. Step 3: Cross multiply
    18,143.10x = 27,217.08 × 6,456.42
  4. Step 4: Simplify right side
    18,143.10x = 175,724,899.65
  5. Step 5: Solve for x
    x = 175,724,899.65/18,143.10
  6. Step 6: Final answer
    x = 9,685.49

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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.