Home / 15,910.08-21,954.24-8,835.36

Finding the Fourth Proportional to 15,910.08, 21,954.24 and 8,835.36

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Solution

The fourth proportional to 15,910.08, 21,954.24 and 8,835.36 is: 12,191.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,910.08 : 21,954.24 = 8,835.36 : x
  2. Step 2: Convert to fraction form
    15,910.08/21,954.24 = 8,835.36/x
  3. Step 3: Cross multiply
    15,910.08x = 21,954.24 × 8,835.36
  4. Step 4: Simplify right side
    15,910.08x = 193,973,613.93
  5. Step 5: Solve for x
    x = 193,973,613.93/15,910.08
  6. Step 6: Final answer
    x = 12,191.87

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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.