Home / 18,994.69-28,500.38-10,107.92

Finding the Fourth Proportional to 18,994.69, 28,500.38 and 10,107.92

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Solution

The fourth proportional to 18,994.69, 28,500.38 and 10,107.92 is: 15,166.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,994.69 : 28,500.38 = 10,107.92 : x
  2. Step 2: Convert to fraction form
    18,994.69/28,500.38 = 10,107.92/x
  3. Step 3: Cross multiply
    18,994.69x = 28,500.38 × 10,107.92
  4. Step 4: Simplify right side
    18,994.69x = 288,079,561.01
  5. Step 5: Solve for x
    x = 288,079,561.01/18,994.69
  6. Step 6: Final answer
    x = 15,166.32

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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.