Home / 14,823.62-20,456.40-8,109.44

Finding the Fourth Proportional to 14,823.62, 20,456.40 and 8,109.44

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Solution

The fourth proportional to 14,823.62, 20,456.40 and 8,109.44 is: 11,190.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,823.62 : 20,456.40 = 8,109.44 : x
  2. Step 2: Convert to fraction form
    14,823.62/20,456.40 = 8,109.44/x
  3. Step 3: Cross multiply
    14,823.62x = 20,456.40 × 8,109.44
  4. Step 4: Simplify right side
    14,823.62x = 165,889,948.42
  5. Step 5: Solve for x
    x = 165,889,948.42/14,823.62
  6. Step 6: Final answer
    x = 11,190.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.