Home / 15,396.54-21,247.14-8,682.23

Finding the Fourth Proportional to 15,396.54, 21,247.14 and 8,682.23

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Solution

The fourth proportional to 15,396.54, 21,247.14 and 8,682.23 is: 11,981.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,396.54 : 21,247.14 = 8,682.23 : x
  2. Step 2: Convert to fraction form
    15,396.54/21,247.14 = 8,682.23/x
  3. Step 3: Cross multiply
    15,396.54x = 21,247.14 × 8,682.23
  4. Step 4: Simplify right side
    15,396.54x = 184,472,450.09
  5. Step 5: Solve for x
    x = 184,472,450.09/15,396.54
  6. Step 6: Final answer
    x = 11,981.42

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Double scale
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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.