Home / 8,787.40-13,177.26-2,629.96

Finding the Fourth Proportional to 8,787.40, 13,177.26 and 2,629.96

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Solution

The fourth proportional to 8,787.40, 13,177.26 and 2,629.96 is: 3,943.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.40 : 13,177.26 = 2,629.96 : x
  2. Step 2: Convert to fraction form
    8,787.40/13,177.26 = 2,629.96/x
  3. Step 3: Cross multiply
    8,787.40x = 13,177.26 × 2,629.96
  4. Step 4: Simplify right side
    8,787.40x = 34,655,666.71
  5. Step 5: Solve for x
    x = 34,655,666.71/8,787.40
  6. Step 6: Final answer
    x = 3,943.79

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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.