Home / 16,612.11-22,902.71-13,421.84

Finding the Fourth Proportional to 16,612.11, 22,902.71 and 13,421.84

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Solution

The fourth proportional to 16,612.11, 22,902.71 and 13,421.84 is: 18,504.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,612.11 : 22,902.71 = 13,421.84 : x
  2. Step 2: Convert to fraction form
    16,612.11/22,902.71 = 13,421.84/x
  3. Step 3: Cross multiply
    16,612.11x = 22,902.71 × 13,421.84
  4. Step 4: Simplify right side
    16,612.11x = 307,396,327.56
  5. Step 5: Solve for x
    x = 307,396,327.56/16,612.11
  6. Step 6: Final answer
    x = 18,504.35

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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.