Home / 11,131.62-15,362.10-6,416.34

Finding the Fourth Proportional to 11,131.62, 15,362.10 and 6,416.34

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Solution

The fourth proportional to 11,131.62, 15,362.10 and 6,416.34 is: 8,854.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.62 : 15,362.10 = 6,416.34 : x
  2. Step 2: Convert to fraction form
    11,131.62/15,362.10 = 6,416.34/x
  3. Step 3: Cross multiply
    11,131.62x = 15,362.10 × 6,416.34
  4. Step 4: Simplify right side
    11,131.62x = 98,568,456.71
  5. Step 5: Solve for x
    x = 98,568,456.71/11,131.62
  6. Step 6: Final answer
    x = 8,854.82

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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.