Home / 11,181.79-16,756.95-8,831.47

Finding the Fourth Proportional to 11,181.79, 16,756.95 and 8,831.47

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Solution

The fourth proportional to 11,181.79, 16,756.95 and 8,831.47 is: 13,234.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.79 : 16,756.95 = 8,831.47 : x
  2. Step 2: Convert to fraction form
    11,181.79/16,756.95 = 8,831.47/x
  3. Step 3: Cross multiply
    11,181.79x = 16,756.95 × 8,831.47
  4. Step 4: Simplify right side
    11,181.79x = 147,988,501.22
  5. Step 5: Solve for x
    x = 147,988,501.22/11,181.79
  6. Step 6: Final answer
    x = 13,234.78

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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.