Home / 11,724.95-16,180.36-6,419.76

Finding the Fourth Proportional to 11,724.95, 16,180.36 and 6,419.76

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Solution

The fourth proportional to 11,724.95, 16,180.36 and 6,419.76 is: 8,859.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.95 : 16,180.36 = 6,419.76 : x
  2. Step 2: Convert to fraction form
    11,724.95/16,180.36 = 6,419.76/x
  3. Step 3: Cross multiply
    11,724.95x = 16,180.36 × 6,419.76
  4. Step 4: Simplify right side
    11,724.95x = 103,873,951.19
  5. Step 5: Solve for x
    x = 103,873,951.19/11,724.95
  6. Step 6: Final answer
    x = 8,859.22

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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.