Home / 10,091.05-15,139.10-9,923.62

Finding the Fourth Proportional to 10,091.05, 15,139.10 and 9,923.62

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Solution

The fourth proportional to 10,091.05, 15,139.10 and 9,923.62 is: 14,887.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,091.05 : 15,139.10 = 9,923.62 : x
  2. Step 2: Convert to fraction form
    10,091.05/15,139.10 = 9,923.62/x
  3. Step 3: Cross multiply
    10,091.05x = 15,139.10 × 9,923.62
  4. Step 4: Simplify right side
    10,091.05x = 150,234,675.54
  5. Step 5: Solve for x
    x = 150,234,675.54/10,091.05
  6. Step 6: Final answer
    x = 14,887.91

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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.