Home / 13,867.77-20,811.89-7,626.62

Finding the Fourth Proportional to 13,867.77, 20,811.89 and 7,626.62

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Solution

The fourth proportional to 13,867.77, 20,811.89 and 7,626.62 is: 11,445.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.77 : 20,811.89 = 7,626.62 : x
  2. Step 2: Convert to fraction form
    13,867.77/20,811.89 = 7,626.62/x
  3. Step 3: Cross multiply
    13,867.77x = 20,811.89 × 7,626.62
  4. Step 4: Simplify right side
    13,867.77x = 158,724,234.32
  5. Step 5: Solve for x
    x = 158,724,234.32/13,867.77
  6. Step 6: Final answer
    x = 11,445.55

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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.