Home / 13,815.06-20,726.63-4,454.89

Finding the Fourth Proportional to 13,815.06, 20,726.63 and 4,454.89

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Solution

The fourth proportional to 13,815.06, 20,726.63 and 4,454.89 is: 6,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815.06 : 20,726.63 = 4,454.89 : x
  2. Step 2: Convert to fraction form
    13,815.06/20,726.63 = 4,454.89/x
  3. Step 3: Cross multiply
    13,815.06x = 20,726.63 × 4,454.89
  4. Step 4: Simplify right side
    13,815.06x = 92,334,856.72
  5. Step 5: Solve for x
    x = 92,334,856.72/13,815.06
  6. Step 6: Final answer
    x = 6,683.64

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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.