Home / 10,115.11-13,960.20-5,809.89

Finding the Fourth Proportional to 10,115.11, 13,960.20 and 5,809.89

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Solution

The fourth proportional to 10,115.11, 13,960.20 and 5,809.89 is: 8,018.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.11 : 13,960.20 = 5,809.89 : x
  2. Step 2: Convert to fraction form
    10,115.11/13,960.20 = 5,809.89/x
  3. Step 3: Cross multiply
    10,115.11x = 13,960.20 × 5,809.89
  4. Step 4: Simplify right side
    10,115.11x = 81,107,300.52
  5. Step 5: Solve for x
    x = 81,107,300.52/10,115.11
  6. Step 6: Final answer
    x = 8,018.43

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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.