Home / 10,133.43-15,189.75-3,891.76

Finding the Fourth Proportional to 10,133.43, 15,189.75 and 3,891.76

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Solution

The fourth proportional to 10,133.43, 15,189.75 and 3,891.76 is: 5,833.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,133.43 : 15,189.75 = 3,891.76 : x
  2. Step 2: Convert to fraction form
    10,133.43/15,189.75 = 3,891.76/x
  3. Step 3: Cross multiply
    10,133.43x = 15,189.75 × 3,891.76
  4. Step 4: Simplify right side
    10,133.43x = 59,114,842.00
  5. Step 5: Solve for x
    x = 59,114,842.00/10,133.43
  6. Step 6: Final answer
    x = 5,833.65

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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.