Home / 13,770.58-20,656.65-3,909.08

Finding the Fourth Proportional to 13,770.58, 20,656.65 and 3,909.08

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Solution

The fourth proportional to 13,770.58, 20,656.65 and 3,909.08 is: 5,863.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,770.58 : 20,656.65 = 3,909.08 : x
  2. Step 2: Convert to fraction form
    13,770.58/20,656.65 = 3,909.08/x
  3. Step 3: Cross multiply
    13,770.58x = 20,656.65 × 3,909.08
  4. Step 4: Simplify right side
    13,770.58x = 80,748,497.38
  5. Step 5: Solve for x
    x = 80,748,497.38/13,770.58
  6. Step 6: Final answer
    x = 5,863.84

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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.