Home / 11,356.70-15,672.48-6,321.10

Finding the Fourth Proportional to 11,356.70, 15,672.48 and 6,321.10

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Solution

The fourth proportional to 11,356.70, 15,672.48 and 6,321.10 is: 8,723.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,356.70 : 15,672.48 = 6,321.10 : x
  2. Step 2: Convert to fraction form
    11,356.70/15,672.48 = 6,321.10/x
  3. Step 3: Cross multiply
    11,356.70x = 15,672.48 × 6,321.10
  4. Step 4: Simplify right side
    11,356.70x = 99,067,313.33
  5. Step 5: Solve for x
    x = 99,067,313.33/11,356.70
  6. Step 6: Final answer
    x = 8,723.25

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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.