Home / 18,624.24-27,870.72-12,974.49

Finding the Fourth Proportional to 18,624.24, 27,870.72 and 12,974.49

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Solution

The fourth proportional to 18,624.24, 27,870.72 and 12,974.49 is: 19,416.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,624.24 : 27,870.72 = 12,974.49 : x
  2. Step 2: Convert to fraction form
    18,624.24/27,870.72 = 12,974.49/x
  3. Step 3: Cross multiply
    18,624.24x = 27,870.72 × 12,974.49
  4. Step 4: Simplify right side
    18,624.24x = 361,608,377.93
  5. Step 5: Solve for x
    x = 361,608,377.93/18,624.24
  6. Step 6: Final answer
    x = 19,416.01

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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.