Home / 13,531.12-20,291.49-6,506.69

Finding the Fourth Proportional to 13,531.12, 20,291.49 and 6,506.69

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Solution

The fourth proportional to 13,531.12, 20,291.49 and 6,506.69 is: 9,757.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.12 : 20,291.49 = 6,506.69 : x
  2. Step 2: Convert to fraction form
    13,531.12/20,291.49 = 6,506.69/x
  3. Step 3: Cross multiply
    13,531.12x = 20,291.49 × 6,506.69
  4. Step 4: Simplify right side
    13,531.12x = 132,030,435.07
  5. Step 5: Solve for x
    x = 132,030,435.07/13,531.12
  6. Step 6: Final answer
    x = 9,757.54

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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.