Home / 18,287.87-27,423.15-8,424.23

Finding the Fourth Proportional to 18,287.87, 27,423.15 and 8,424.23

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Solution

The fourth proportional to 18,287.87, 27,423.15 and 8,424.23 is: 12,632.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,287.87 : 27,423.15 = 8,424.23 : x
  2. Step 2: Convert to fraction form
    18,287.87/27,423.15 = 8,424.23/x
  3. Step 3: Cross multiply
    18,287.87x = 27,423.15 × 8,424.23
  4. Step 4: Simplify right side
    18,287.87x = 231,018,922.92
  5. Step 5: Solve for x
    x = 231,018,922.92/18,287.87
  6. Step 6: Final answer
    x = 12,632.36

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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.