Home / 18,228.40-27,342.36-12,600.64

Finding the Fourth Proportional to 18,228.40, 27,342.36 and 12,600.64

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Solution

The fourth proportional to 18,228.40, 27,342.36 and 12,600.64 is: 18,900.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.40 : 27,342.36 = 12,600.64 : x
  2. Step 2: Convert to fraction form
    18,228.40/27,342.36 = 12,600.64/x
  3. Step 3: Cross multiply
    18,228.40x = 27,342.36 × 12,600.64
  4. Step 4: Simplify right side
    18,228.40x = 344,531,235.11
  5. Step 5: Solve for x
    x = 344,531,235.11/18,228.40
  6. Step 6: Final answer
    x = 18,900.79

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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.