Home / 12,877.79-19,265.85-9,766.58

Finding the Fourth Proportional to 12,877.79, 19,265.85 and 9,766.58

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Solution

The fourth proportional to 12,877.79, 19,265.85 and 9,766.58 is: 14,611.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877.79 : 19,265.85 = 9,766.58 : x
  2. Step 2: Convert to fraction form
    12,877.79/19,265.85 = 9,766.58/x
  3. Step 3: Cross multiply
    12,877.79x = 19,265.85 × 9,766.58
  4. Step 4: Simplify right side
    12,877.79x = 188,161,368.96
  5. Step 5: Solve for x
    x = 188,161,368.96/12,877.79
  6. Step 6: Final answer
    x = 14,611.31

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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.