Home / 12,226.39-16,872.82-6,921.10

Finding the Fourth Proportional to 12,226.39, 16,872.82 and 6,921.10

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Solution

The fourth proportional to 12,226.39, 16,872.82 and 6,921.10 is: 9,551.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.39 : 16,872.82 = 6,921.10 : x
  2. Step 2: Convert to fraction form
    12,226.39/16,872.82 = 6,921.10/x
  3. Step 3: Cross multiply
    12,226.39x = 16,872.82 × 6,921.10
  4. Step 4: Simplify right side
    12,226.39x = 116,778,474.50
  5. Step 5: Solve for x
    x = 116,778,474.50/12,226.39
  6. Step 6: Final answer
    x = 9,551.35

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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.