Home / 11,924.84-16,456.28-6,620.15

Finding the Fourth Proportional to 11,924.84, 16,456.28 and 6,620.15

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Solution

The fourth proportional to 11,924.84, 16,456.28 and 6,620.15 is: 9,135.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,924.84 : 16,456.28 = 6,620.15 : x
  2. Step 2: Convert to fraction form
    11,924.84/16,456.28 = 6,620.15/x
  3. Step 3: Cross multiply
    11,924.84x = 16,456.28 × 6,620.15
  4. Step 4: Simplify right side
    11,924.84x = 108,942,926.66
  5. Step 5: Solve for x
    x = 108,942,926.66/11,924.84
  6. Step 6: Final answer
    x = 9,135.80

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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.