Home / 18,767.05-28,150.54-8,900.94

Finding the Fourth Proportional to 18,767.05, 28,150.54 and 8,900.94

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Solution

The fourth proportional to 18,767.05, 28,150.54 and 8,900.94 is: 13,351.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,767.05 : 28,150.54 = 8,900.94 : x
  2. Step 2: Convert to fraction form
    18,767.05/28,150.54 = 8,900.94/x
  3. Step 3: Cross multiply
    18,767.05x = 28,150.54 × 8,900.94
  4. Step 4: Simplify right side
    18,767.05x = 250,566,267.51
  5. Step 5: Solve for x
    x = 250,566,267.51/18,767.05
  6. Step 6: Final answer
    x = 13,351.39

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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.