Home / 10,001.09-13,800.70-5,809.61

Finding the Fourth Proportional to 10,001.09, 13,800.70 and 5,809.61

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Solution

The fourth proportional to 10,001.09, 13,800.70 and 5,809.61 is: 8,016.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,001.09 : 13,800.70 = 5,809.61 : x
  2. Step 2: Convert to fraction form
    10,001.09/13,800.70 = 5,809.61/x
  3. Step 3: Cross multiply
    10,001.09x = 13,800.70 × 5,809.61
  4. Step 4: Simplify right side
    10,001.09x = 80,176,684.73
  5. Step 5: Solve for x
    x = 80,176,684.73/10,001.09
  6. Step 6: Final answer
    x = 8,016.79

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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.