Home / 12,877.78-19,329.13-6,218.95

Finding the Fourth Proportional to 12,877.78, 19,329.13 and 6,218.95

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Solution

The fourth proportional to 12,877.78, 19,329.13 and 6,218.95 is: 9,334.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877.78 : 19,329.13 = 6,218.95 : x
  2. Step 2: Convert to fraction form
    12,877.78/19,329.13 = 6,218.95/x
  3. Step 3: Cross multiply
    12,877.78x = 19,329.13 × 6,218.95
  4. Step 4: Simplify right side
    12,877.78x = 120,206,829.14
  5. Step 5: Solve for x
    x = 120,206,829.14/12,877.78
  6. Step 6: Final answer
    x = 9,334.44

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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.