Home / 10,189.05-15,285.78-3,168.93

Finding the Fourth Proportional to 10,189.05, 15,285.78 and 3,168.93

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Solution

The fourth proportional to 10,189.05, 15,285.78 and 3,168.93 is: 4,754.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,189.05 : 15,285.78 = 3,168.93 : x
  2. Step 2: Convert to fraction form
    10,189.05/15,285.78 = 3,168.93/x
  3. Step 3: Cross multiply
    10,189.05x = 15,285.78 × 3,168.93
  4. Step 4: Simplify right side
    10,189.05x = 48,439,520.68
  5. Step 5: Solve for x
    x = 48,439,520.68/10,189.05
  6. Step 6: Final answer
    x = 4,754.08

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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.