Home / 12,877.78-19,318.20-4,556.08

Finding the Fourth Proportional to 12,877.78, 19,318.20 and 4,556.08

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Solution

The fourth proportional to 12,877.78, 19,318.20 and 4,556.08 is: 6,834.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877.78 : 19,318.20 = 4,556.08 : x
  2. Step 2: Convert to fraction form
    12,877.78/19,318.20 = 4,556.08/x
  3. Step 3: Cross multiply
    12,877.78x = 19,318.20 × 4,556.08
  4. Step 4: Simplify right side
    12,877.78x = 88,015,264.66
  5. Step 5: Solve for x
    x = 88,015,264.66/12,877.78
  6. Step 6: Final answer
    x = 6,834.66

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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.