Home / 11,272.42-15,556.80-6,493.84

Finding the Fourth Proportional to 11,272.42, 15,556.80 and 6,493.84

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Solution

The fourth proportional to 11,272.42, 15,556.80 and 6,493.84 is: 8,961.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,272.42 : 15,556.80 = 6,493.84 : x
  2. Step 2: Convert to fraction form
    11,272.42/15,556.80 = 6,493.84/x
  3. Step 3: Cross multiply
    11,272.42x = 15,556.80 × 6,493.84
  4. Step 4: Simplify right side
    11,272.42x = 101,023,370.11
  5. Step 5: Solve for x
    x = 101,023,370.11/11,272.42
  6. Step 6: Final answer
    x = 8,961.99

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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.