Home / 12,771.15-19,156.71-4,006.75

Finding the Fourth Proportional to 12,771.15, 19,156.71 and 4,006.75

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Solution

The fourth proportional to 12,771.15, 19,156.71 and 4,006.75 is: 6,010.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771.15 : 19,156.71 = 4,006.75 : x
  2. Step 2: Convert to fraction form
    12,771.15/19,156.71 = 4,006.75/x
  3. Step 3: Cross multiply
    12,771.15x = 19,156.71 × 4,006.75
  4. Step 4: Simplify right side
    12,771.15x = 76,756,186.76
  5. Step 5: Solve for x
    x = 76,756,186.76/12,771.15
  6. Step 6: Final answer
    x = 6,010.12

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1.5x scale

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.