Home / 13,801.38-19,043.28-8,766.42

Finding the Fourth Proportional to 13,801.38, 19,043.28 and 8,766.42

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Solution

The fourth proportional to 13,801.38, 19,043.28 and 8,766.42 is: 12,095.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,801.38 : 19,043.28 = 8,766.42 : x
  2. Step 2: Convert to fraction form
    13,801.38/19,043.28 = 8,766.42/x
  3. Step 3: Cross multiply
    13,801.38x = 19,043.28 × 8,766.42
  4. Step 4: Simplify right side
    13,801.38x = 166,941,390.66
  5. Step 5: Solve for x
    x = 166,941,390.66/13,801.38
  6. Step 6: Final answer
    x = 12,095.99

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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.