Home / 10,381.38-14,326.26-5,665.65

Finding the Fourth Proportional to 10,381.38, 14,326.26 and 5,665.65

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Solution

The fourth proportional to 10,381.38, 14,326.26 and 5,665.65 is: 7,818.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,381.38 : 14,326.26 = 5,665.65 : x
  2. Step 2: Convert to fraction form
    10,381.38/14,326.26 = 5,665.65/x
  3. Step 3: Cross multiply
    10,381.38x = 14,326.26 × 5,665.65
  4. Step 4: Simplify right side
    10,381.38x = 81,167,574.97
  5. Step 5: Solve for x
    x = 81,167,574.97/10,381.38
  6. Step 6: Final answer
    x = 7,818.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.