Home / 10,066.10-13,890.20-5,876.78

Finding the Fourth Proportional to 10,066.10, 13,890.20 and 5,876.78

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Solution

The fourth proportional to 10,066.10, 13,890.20 and 5,876.78 is: 8,109.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,066.10 : 13,890.20 = 5,876.78 : x
  2. Step 2: Convert to fraction form
    10,066.10/13,890.20 = 5,876.78/x
  3. Step 3: Cross multiply
    10,066.10x = 13,890.20 × 5,876.78
  4. Step 4: Simplify right side
    10,066.10x = 81,629,698.97
  5. Step 5: Solve for x
    x = 81,629,698.97/10,066.10
  6. Step 6: Final answer
    x = 8,109.36

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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.