Home / 11,065.70-15,270.09-6,873.86

Finding the Fourth Proportional to 11,065.70, 15,270.09 and 6,873.86

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Solution

The fourth proportional to 11,065.70, 15,270.09 and 6,873.86 is: 9,485.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,065.70 : 15,270.09 = 6,873.86 : x
  2. Step 2: Convert to fraction form
    11,065.70/15,270.09 = 6,873.86/x
  3. Step 3: Cross multiply
    11,065.70x = 15,270.09 × 6,873.86
  4. Step 4: Simplify right side
    11,065.70x = 104,964,460.85
  5. Step 5: Solve for x
    x = 104,964,460.85/11,065.70
  6. Step 6: Final answer
    x = 9,485.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.