Home / 13,731.84-18,950.40-8,766.72

Finding the Fourth Proportional to 13,731.84, 18,950.40 and 8,766.72

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Solution

The fourth proportional to 13,731.84, 18,950.40 and 8,766.72 is: 12,098.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.84 : 18,950.40 = 8,766.72 : x
  2. Step 2: Convert to fraction form
    13,731.84/18,950.40 = 8,766.72/x
  3. Step 3: Cross multiply
    13,731.84x = 18,950.40 × 8,766.72
  4. Step 4: Simplify right side
    13,731.84x = 166,132,850.69
  5. Step 5: Solve for x
    x = 166,132,850.69/13,731.84
  6. Step 6: Final answer
    x = 12,098.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.