Home / 15,508.80-21,401.76-8,794.44

Finding the Fourth Proportional to 15,508.80, 21,401.76 and 8,794.44

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Solution

The fourth proportional to 15,508.80, 21,401.76 and 8,794.44 is: 12,136.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,508.80 : 21,401.76 = 8,794.44 : x
  2. Step 2: Convert to fraction form
    15,508.80/21,401.76 = 8,794.44/x
  3. Step 3: Cross multiply
    15,508.80x = 21,401.76 × 8,794.44
  4. Step 4: Simplify right side
    15,508.80x = 188,216,494.21
  5. Step 5: Solve for x
    x = 188,216,494.21/15,508.80
  6. Step 6: Final answer
    x = 12,136.11

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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.