Home / 18,340.30-27,507.39-5,189.41

Finding the Fourth Proportional to 18,340.30, 27,507.39 and 5,189.41

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Solution

The fourth proportional to 18,340.30, 27,507.39 and 5,189.41 is: 7,783.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,340.30 : 27,507.39 = 5,189.41 : x
  2. Step 2: Convert to fraction form
    18,340.30/27,507.39 = 5,189.41/x
  3. Step 3: Cross multiply
    18,340.30x = 27,507.39 × 5,189.41
  4. Step 4: Simplify right side
    18,340.30x = 142,747,124.74
  5. Step 5: Solve for x
    x = 142,747,124.74/18,340.30
  6. Step 6: Final answer
    x = 7,783.25

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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.