Home / 16,212.39-22,373.16-9,138.93

Finding the Fourth Proportional to 16,212.39, 22,373.16 and 9,138.93

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Solution

The fourth proportional to 16,212.39, 22,373.16 and 9,138.93 is: 12,611.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,212.39 : 22,373.16 = 9,138.93 : x
  2. Step 2: Convert to fraction form
    16,212.39/22,373.16 = 9,138.93/x
  3. Step 3: Cross multiply
    16,212.39x = 22,373.16 × 9,138.93
  4. Step 4: Simplify right side
    16,212.39x = 204,466,743.12
  5. Step 5: Solve for x
    x = 204,466,743.12/16,212.39
  6. Step 6: Final answer
    x = 12,611.76

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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.