Home / 13,559.64-20,336.20-3,698.96

Finding the Fourth Proportional to 13,559.64, 20,336.20 and 3,698.96

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Solution

The fourth proportional to 13,559.64, 20,336.20 and 3,698.96 is: 5,547.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.64 : 20,336.20 = 3,698.96 : x
  2. Step 2: Convert to fraction form
    13,559.64/20,336.20 = 3,698.96/x
  3. Step 3: Cross multiply
    13,559.64x = 20,336.20 × 3,698.96
  4. Step 4: Simplify right side
    13,559.64x = 75,222,790.35
  5. Step 5: Solve for x
    x = 75,222,790.35/13,559.64
  6. Step 6: Final answer
    x = 5,547.55

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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.