Home / 11,478.15-17,234.64-10,914.39

Finding the Fourth Proportional to 11,478.15, 17,234.64 and 10,914.39

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Solution

The fourth proportional to 11,478.15, 17,234.64 and 10,914.39 is: 16,388.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478.15 : 17,234.64 = 10,914.39 : x
  2. Step 2: Convert to fraction form
    11,478.15/17,234.64 = 10,914.39/x
  3. Step 3: Cross multiply
    11,478.15x = 17,234.64 × 10,914.39
  4. Step 4: Simplify right side
    11,478.15x = 188,105,582.47
  5. Step 5: Solve for x
    x = 188,105,582.47/11,478.15
  6. Step 6: Final answer
    x = 16,388.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.