Home / 13,521.22-20,257.56-8,253.52

Finding the Fourth Proportional to 13,521.22, 20,257.56 and 8,253.52

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Solution

The fourth proportional to 13,521.22, 20,257.56 and 8,253.52 is: 12,365.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.22 : 20,257.56 = 8,253.52 : x
  2. Step 2: Convert to fraction form
    13,521.22/20,257.56 = 8,253.52/x
  3. Step 3: Cross multiply
    13,521.22x = 20,257.56 × 8,253.52
  4. Step 4: Simplify right side
    13,521.22x = 167,196,125.97
  5. Step 5: Solve for x
    x = 167,196,125.97/13,521.22
  6. Step 6: Final answer
    x = 12,365.46

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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.