Home / 13,421.76-20,132.77-3,562.03

Finding the Fourth Proportional to 13,421.76, 20,132.77 and 3,562.03

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Solution

The fourth proportional to 13,421.76, 20,132.77 and 3,562.03 is: 5,343.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,421.76 : 20,132.77 = 3,562.03 : x
  2. Step 2: Convert to fraction form
    13,421.76/20,132.77 = 3,562.03/x
  3. Step 3: Cross multiply
    13,421.76x = 20,132.77 × 3,562.03
  4. Step 4: Simplify right side
    13,421.76x = 71,713,530.72
  5. Step 5: Solve for x
    x = 71,713,530.72/13,421.76
  6. Step 6: Final answer
    x = 5,343.08

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1.5x scale

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.