Home / 18,228.06-27,280.35-11,212.52

Finding the Fourth Proportional to 18,228.06, 27,280.35 and 11,212.52

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Solution

The fourth proportional to 18,228.06, 27,280.35 and 11,212.52 is: 16,780.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.06 : 27,280.35 = 11,212.52 : x
  2. Step 2: Convert to fraction form
    18,228.06/27,280.35 = 11,212.52/x
  3. Step 3: Cross multiply
    18,228.06x = 27,280.35 × 11,212.52
  4. Step 4: Simplify right side
    18,228.06x = 305,881,333.58
  5. Step 5: Solve for x
    x = 305,881,333.58/18,228.06
  6. Step 6: Final answer
    x = 16,780.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.