Home / 18,993.43-28,498.49-10,106.67

Finding the Fourth Proportional to 18,993.43, 28,498.49 and 10,106.67

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Solution

The fourth proportional to 18,993.43, 28,498.49 and 10,106.67 is: 15,164.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,993.43 : 28,498.49 = 10,106.67 : x
  2. Step 2: Convert to fraction form
    18,993.43/28,498.49 = 10,106.67/x
  3. Step 3: Cross multiply
    18,993.43x = 28,498.49 × 10,106.67
  4. Step 4: Simplify right side
    18,993.43x = 288,024,640.90
  5. Step 5: Solve for x
    x = 288,024,640.90/18,993.43
  6. Step 6: Final answer
    x = 15,164.44

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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.