Home / 12,251.86-16,904.61-7,774

Finding the Fourth Proportional to 12,251.86, 16,904.61 and 7,774

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Solution

The fourth proportional to 12,251.86, 16,904.61 and 7,774 is: 10,726.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251.86 : 16,904.61 = 7,774 : x
  2. Step 2: Convert to fraction form
    12,251.86/16,904.61 = 7,774/x
  3. Step 3: Cross multiply
    12,251.86x = 16,904.61 × 7,774
  4. Step 4: Simplify right side
    12,251.86x = 131,416,438.14
  5. Step 5: Solve for x
    x = 131,416,438.14/12,251.86
  6. Step 6: Final answer
    x = 10,726.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.