Home / 13,102.96-19,651.40-3,742.78

Finding the Fourth Proportional to 13,102.96, 19,651.40 and 3,742.78

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Solution

The fourth proportional to 13,102.96, 19,651.40 and 3,742.78 is: 5,613.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,102.96 : 19,651.40 = 3,742.78 : x
  2. Step 2: Convert to fraction form
    13,102.96/19,651.40 = 3,742.78/x
  3. Step 3: Cross multiply
    13,102.96x = 19,651.40 × 3,742.78
  4. Step 4: Simplify right side
    13,102.96x = 73,550,866.89
  5. Step 5: Solve for x
    x = 73,550,866.89/13,102.96
  6. Step 6: Final answer
    x = 5,613.30

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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.