Home / 11,724.24-16,179.63-6,419.55

Finding the Fourth Proportional to 11,724.24, 16,179.63 and 6,419.55

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Solution

The fourth proportional to 11,724.24, 16,179.63 and 6,419.55 is: 8,859.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.24 : 16,179.63 = 6,419.55 : x
  2. Step 2: Convert to fraction form
    11,724.24/16,179.63 = 6,419.55/x
  3. Step 3: Cross multiply
    11,724.24x = 16,179.63 × 6,419.55
  4. Step 4: Simplify right side
    11,724.24x = 103,865,943.77
  5. Step 5: Solve for x
    x = 103,865,943.77/11,724.24
  6. Step 6: Final answer
    x = 8,859.08

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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.