Home / 12,766.95-19,146.94-8,079.91

Finding the Fourth Proportional to 12,766.95, 19,146.94 and 8,079.91

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Solution

The fourth proportional to 12,766.95, 19,146.94 and 8,079.91 is: 12,117.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,766.95 : 19,146.94 = 8,079.91 : x
  2. Step 2: Convert to fraction form
    12,766.95/19,146.94 = 8,079.91/x
  3. Step 3: Cross multiply
    12,766.95x = 19,146.94 × 8,079.91
  4. Step 4: Simplify right side
    12,766.95x = 154,705,483.91
  5. Step 5: Solve for x
    x = 154,705,483.91/12,766.95
  6. Step 6: Final answer
    x = 12,117.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.