Home / 10,091.70-15,121.14-6,187.86

Finding the Fourth Proportional to 10,091.70, 15,121.14 and 6,187.86

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Solution

The fourth proportional to 10,091.70, 15,121.14 and 6,187.86 is: 9,271.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,091.70 : 15,121.14 = 6,187.86 : x
  2. Step 2: Convert to fraction form
    10,091.70/15,121.14 = 6,187.86/x
  3. Step 3: Cross multiply
    10,091.70x = 15,121.14 × 6,187.86
  4. Step 4: Simplify right side
    10,091.70x = 93,567,497.36
  5. Step 5: Solve for x
    x = 93,567,497.36/10,091.70
  6. Step 6: Final answer
    x = 9,271.73

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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.