Home / 13,130.22-19,695.60-3,770.55

Finding the Fourth Proportional to 13,130.22, 19,695.60 and 3,770.55

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Solution

The fourth proportional to 13,130.22, 19,695.60 and 3,770.55 is: 5,655.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.22 : 19,695.60 = 3,770.55 : x
  2. Step 2: Convert to fraction form
    13,130.22/19,695.60 = 3,770.55/x
  3. Step 3: Cross multiply
    13,130.22x = 19,695.60 × 3,770.55
  4. Step 4: Simplify right side
    13,130.22x = 74,263,244.58
  5. Step 5: Solve for x
    x = 74,263,244.58/13,130.22
  6. Step 6: Final answer
    x = 5,655.90

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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.