Home / 12,320.86-18,491.01-5,743.66

Finding the Fourth Proportional to 12,320.86, 18,491.01 and 5,743.66

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Solution

The fourth proportional to 12,320.86, 18,491.01 and 5,743.66 is: 8,620.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320.86 : 18,491.01 = 5,743.66 : x
  2. Step 2: Convert to fraction form
    12,320.86/18,491.01 = 5,743.66/x
  3. Step 3: Cross multiply
    12,320.86x = 18,491.01 × 5,743.66
  4. Step 4: Simplify right side
    12,320.86x = 106,206,074.50
  5. Step 5: Solve for x
    x = 106,206,074.50/12,320.86
  6. Step 6: Final answer
    x = 8,620.02

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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.