Home / 10,042.11-13,858.13-5,565.78

Finding the Fourth Proportional to 10,042.11, 13,858.13 and 5,565.78

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Solution

The fourth proportional to 10,042.11, 13,858.13 and 5,565.78 is: 7,680.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,042.11 : 13,858.13 = 5,565.78 : x
  2. Step 2: Convert to fraction form
    10,042.11/13,858.13 = 5,565.78/x
  3. Step 3: Cross multiply
    10,042.11x = 13,858.13 × 5,565.78
  4. Step 4: Simplify right side
    10,042.11x = 77,131,302.79
  5. Step 5: Solve for x
    x = 77,131,302.79/10,042.11
  6. Step 6: Final answer
    x = 7,680.79

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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.