Home / 12,376.38-18,523.80-10,665.66

Finding the Fourth Proportional to 12,376.38, 18,523.80 and 10,665.66

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Solution

The fourth proportional to 12,376.38, 18,523.80 and 10,665.66 is: 15,963.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.38 : 18,523.80 = 10,665.66 : x
  2. Step 2: Convert to fraction form
    12,376.38/18,523.80 = 10,665.66/x
  3. Step 3: Cross multiply
    12,376.38x = 18,523.80 × 10,665.66
  4. Step 4: Simplify right side
    12,376.38x = 197,568,552.71
  5. Step 5: Solve for x
    x = 197,568,552.71/12,376.38
  6. Step 6: Final answer
    x = 15,963.36

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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.