Home / 12,226.42-16,856.13-9,716.86

Finding the Fourth Proportional to 12,226.42, 16,856.13 and 9,716.86

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Solution

The fourth proportional to 12,226.42, 16,856.13 and 9,716.86 is: 13,396.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.42 : 16,856.13 = 9,716.86 : x
  2. Step 2: Convert to fraction form
    12,226.42/16,856.13 = 9,716.86/x
  3. Step 3: Cross multiply
    12,226.42x = 16,856.13 × 9,716.86
  4. Step 4: Simplify right side
    12,226.42x = 163,788,655.35
  5. Step 5: Solve for x
    x = 163,788,655.35/12,226.42
  6. Step 6: Final answer
    x = 13,396.29

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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.