Home / 18,766.88-25,899.10-10,383.38

Finding the Fourth Proportional to 18,766.88, 25,899.10 and 10,383.38

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Solution

The fourth proportional to 18,766.88, 25,899.10 and 10,383.38 is: 14,329.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,766.88 : 25,899.10 = 10,383.38 : x
  2. Step 2: Convert to fraction form
    18,766.88/25,899.10 = 10,383.38/x
  3. Step 3: Cross multiply
    18,766.88x = 25,899.10 × 10,383.38
  4. Step 4: Simplify right side
    18,766.88x = 268,920,041.50
  5. Step 5: Solve for x
    x = 268,920,041.50/18,766.88
  6. Step 6: Final answer
    x = 14,329.51

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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.