Home / 11,479.86-17,219.17-3,688.06

Finding the Fourth Proportional to 11,479.86, 17,219.17 and 3,688.06

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Solution

The fourth proportional to 11,479.86, 17,219.17 and 3,688.06 is: 5,531.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,479.86 : 17,219.17 = 3,688.06 : x
  2. Step 2: Convert to fraction form
    11,479.86/17,219.17 = 3,688.06/x
  3. Step 3: Cross multiply
    11,479.86x = 17,219.17 × 3,688.06
  4. Step 4: Simplify right side
    11,479.86x = 63,505,332.11
  5. Step 5: Solve for x
    x = 63,505,332.11/11,479.86
  6. Step 6: Final answer
    x = 5,531.89

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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.