Home / 12,226.90-16,848.93-8,680.18

Finding the Fourth Proportional to 12,226.90, 16,848.93 and 8,680.18

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Solution

The fourth proportional to 12,226.90, 16,848.93 and 8,680.18 is: 11,961.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.90 : 16,848.93 = 8,680.18 : x
  2. Step 2: Convert to fraction form
    12,226.90/16,848.93 = 8,680.18/x
  3. Step 3: Cross multiply
    12,226.90x = 16,848.93 × 8,680.18
  4. Step 4: Simplify right side
    12,226.90x = 146,251,745.21
  5. Step 5: Solve for x
    x = 146,251,745.21/12,226.90
  6. Step 6: Final answer
    x = 11,961.47

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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.