Home / 8,370.50-11,544.86-6,131.56

Finding the Fourth Proportional to 8,370.50, 11,544.86 and 6,131.56

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Solution

The fourth proportional to 8,370.50, 11,544.86 and 6,131.56 is: 8,456.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,370.50 : 11,544.86 = 6,131.56 : x
  2. Step 2: Convert to fraction form
    8,370.50/11,544.86 = 6,131.56/x
  3. Step 3: Cross multiply
    8,370.50x = 11,544.86 × 6,131.56
  4. Step 4: Simplify right side
    8,370.50x = 70,788,001.78
  5. Step 5: Solve for x
    x = 70,788,001.78/8,370.50
  6. Step 6: Final answer
    x = 8,456.84

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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.