Home / 12,189.23-18,281.04-3,867.70

Finding the Fourth Proportional to 12,189.23, 18,281.04 and 3,867.70

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Solution

The fourth proportional to 12,189.23, 18,281.04 and 3,867.70 is: 5,800.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,189.23 : 18,281.04 = 3,867.70 : x
  2. Step 2: Convert to fraction form
    12,189.23/18,281.04 = 3,867.70/x
  3. Step 3: Cross multiply
    12,189.23x = 18,281.04 × 3,867.70
  4. Step 4: Simplify right side
    12,189.23x = 70,705,574.23
  5. Step 5: Solve for x
    x = 70,705,574.23/12,189.23
  6. Step 6: Final answer
    x = 5,800.66

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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.