Home / 13,867.29-19,134.57-8,563.80

Finding the Fourth Proportional to 13,867.29, 19,134.57 and 8,563.80

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Solution

The fourth proportional to 13,867.29, 19,134.57 and 8,563.80 is: 11,816.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.29 : 19,134.57 = 8,563.80 : x
  2. Step 2: Convert to fraction form
    13,867.29/19,134.57 = 8,563.80/x
  3. Step 3: Cross multiply
    13,867.29x = 19,134.57 × 8,563.80
  4. Step 4: Simplify right side
    13,867.29x = 163,864,630.57
  5. Step 5: Solve for x
    x = 163,864,630.57/13,867.29
  6. Step 6: Final answer
    x = 11,816.63

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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.