Home / 10,491.86-15,737.76-3,828.84

Finding the Fourth Proportional to 10,491.86, 15,737.76 and 3,828.84

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Solution

The fourth proportional to 10,491.86, 15,737.76 and 3,828.84 is: 5,743.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,491.86 : 15,737.76 = 3,828.84 : x
  2. Step 2: Convert to fraction form
    10,491.86/15,737.76 = 3,828.84/x
  3. Step 3: Cross multiply
    10,491.86x = 15,737.76 × 3,828.84
  4. Step 4: Simplify right side
    10,491.86x = 60,257,365.00
  5. Step 5: Solve for x
    x = 60,257,365.00/10,491.86
  6. Step 6: Final answer
    x = 5,743.25

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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.