Home / 18,117.20-27,176.12-6,424.40

Finding the Fourth Proportional to 18,117.20, 27,176.12 and 6,424.40

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Solution

The fourth proportional to 18,117.20, 27,176.12 and 6,424.40 is: 9,636.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.20 : 27,176.12 = 6,424.40 : x
  2. Step 2: Convert to fraction form
    18,117.20/27,176.12 = 6,424.40/x
  3. Step 3: Cross multiply
    18,117.20x = 27,176.12 × 6,424.40
  4. Step 4: Simplify right side
    18,117.20x = 174,590,265.33
  5. Step 5: Solve for x
    x = 174,590,265.33/18,117.20
  6. Step 6: Final answer
    x = 9,636.71

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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.