Home / 11,724.86-16,180.17-6,419.66

Finding the Fourth Proportional to 11,724.86, 16,180.17 and 6,419.66

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Solution

The fourth proportional to 11,724.86, 16,180.17 and 6,419.66 is: 8,859.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.86 : 16,180.17 = 6,419.66 : x
  2. Step 2: Convert to fraction form
    11,724.86/16,180.17 = 6,419.66/x
  3. Step 3: Cross multiply
    11,724.86x = 16,180.17 × 6,419.66
  4. Step 4: Simplify right side
    11,724.86x = 103,871,109.24
  5. Step 5: Solve for x
    x = 103,871,109.24/11,724.86
  6. Step 6: Final answer
    x = 8,859.05

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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.