Home / 11,727.89-16,184.36-6,422.39

Finding the Fourth Proportional to 11,727.89, 16,184.36 and 6,422.39

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Solution

The fourth proportional to 11,727.89, 16,184.36 and 6,422.39 is: 8,862.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,727.89 : 16,184.36 = 6,422.39 : x
  2. Step 2: Convert to fraction form
    11,727.89/16,184.36 = 6,422.39/x
  3. Step 3: Cross multiply
    11,727.89x = 16,184.36 × 6,422.39
  4. Step 4: Simplify right side
    11,727.89x = 103,942,271.82
  5. Step 5: Solve for x
    x = 103,942,271.82/11,727.89
  6. Step 6: Final answer
    x = 8,862.83

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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.