Home / 13,551.10-20,328.02-3,691.14

Finding the Fourth Proportional to 13,551.10, 20,328.02 and 3,691.14

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Solution

The fourth proportional to 13,551.10, 20,328.02 and 3,691.14 is: 5,537.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.10 : 20,328.02 = 3,691.14 : x
  2. Step 2: Convert to fraction form
    13,551.10/20,328.02 = 3,691.14/x
  3. Step 3: Cross multiply
    13,551.10x = 20,328.02 × 3,691.14
  4. Step 4: Simplify right side
    13,551.10x = 75,033,567.74
  5. Step 5: Solve for x
    x = 75,033,567.74/13,551.10
  6. Step 6: Final answer
    x = 5,537.08

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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.