Home / 16,770.68-23,119.15-11,719.21

Finding the Fourth Proportional to 16,770.68, 23,119.15 and 11,719.21

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Solution

The fourth proportional to 16,770.68, 23,119.15 and 11,719.21 is: 16,155.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,770.68 : 23,119.15 = 11,719.21 : x
  2. Step 2: Convert to fraction form
    16,770.68/23,119.15 = 11,719.21/x
  3. Step 3: Cross multiply
    16,770.68x = 23,119.15 × 11,719.21
  4. Step 4: Simplify right side
    16,770.68x = 270,938,086.78
  5. Step 5: Solve for x
    x = 270,938,086.78/16,770.68
  6. Step 6: Final answer
    x = 16,155.47

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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.