Home / 12,766.89-17,618.05-7,101.44

Finding the Fourth Proportional to 12,766.89, 17,618.05 and 7,101.44

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Solution

The fourth proportional to 12,766.89, 17,618.05 and 7,101.44 is: 9,799.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,766.89 : 17,618.05 = 7,101.44 : x
  2. Step 2: Convert to fraction form
    12,766.89/17,618.05 = 7,101.44/x
  3. Step 3: Cross multiply
    12,766.89x = 17,618.05 × 7,101.44
  4. Step 4: Simplify right side
    12,766.89x = 125,113,524.99
  5. Step 5: Solve for x
    x = 125,113,524.99/12,766.89
  6. Step 6: Final answer
    x = 9,799.84

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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.