Home / 11,406.42-15,740.70-6,370.73

Finding the Fourth Proportional to 11,406.42, 15,740.70 and 6,370.73

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Solution

The fourth proportional to 11,406.42, 15,740.70 and 6,370.73 is: 8,791.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,406.42 : 15,740.70 = 6,370.73 : x
  2. Step 2: Convert to fraction form
    11,406.42/15,740.70 = 6,370.73/x
  3. Step 3: Cross multiply
    11,406.42x = 15,740.70 × 6,370.73
  4. Step 4: Simplify right side
    11,406.42x = 100,279,749.71
  5. Step 5: Solve for x
    x = 100,279,749.71/11,406.42
  6. Step 6: Final answer
    x = 8,791.52

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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.