Home / 13,891.38-19,176.36-8,862.36

Finding the Fourth Proportional to 13,891.38, 19,176.36 and 8,862.36

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Solution

The fourth proportional to 13,891.38, 19,176.36 and 8,862.36 is: 12,234.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.38 : 19,176.36 = 8,862.36 : x
  2. Step 2: Convert to fraction form
    13,891.38/19,176.36 = 8,862.36/x
  3. Step 3: Cross multiply
    13,891.38x = 19,176.36 × 8,862.36
  4. Step 4: Simplify right side
    13,891.38x = 169,947,805.81
  5. Step 5: Solve for x
    x = 169,947,805.81/13,891.38
  6. Step 6: Final answer
    x = 12,234.05

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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.