Home / 10,383.12-15,577.11-3,810.78

Finding the Fourth Proportional to 10,383.12, 15,577.11 and 3,810.78

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Solution

The fourth proportional to 10,383.12, 15,577.11 and 3,810.78 is: 5,717.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,383.12 : 15,577.11 = 3,810.78 : x
  2. Step 2: Convert to fraction form
    10,383.12/15,577.11 = 3,810.78/x
  3. Step 3: Cross multiply
    10,383.12x = 15,577.11 × 3,810.78
  4. Step 4: Simplify right side
    10,383.12x = 59,360,939.25
  5. Step 5: Solve for x
    x = 59,360,939.25/10,383.12
  6. Step 6: Final answer
    x = 5,717.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.