Home / 10,491.12-15,739.11-3,470.85

Finding the Fourth Proportional to 10,491.12, 15,739.11 and 3,470.85

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Solution

The fourth proportional to 10,491.12, 15,739.11 and 3,470.85 is: 5,207.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,491.12 : 15,739.11 = 3,470.85 : x
  2. Step 2: Convert to fraction form
    10,491.12/15,739.11 = 3,470.85/x
  3. Step 3: Cross multiply
    10,491.12x = 15,739.11 × 3,470.85
  4. Step 4: Simplify right side
    10,491.12x = 54,628,089.94
  5. Step 5: Solve for x
    x = 54,628,089.94/10,491.12
  6. Step 6: Final answer
    x = 5,207.08

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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.