Home / 13,854.12-19,115.10-8,816.28

Finding the Fourth Proportional to 13,854.12, 19,115.10 and 8,816.28

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Solution

The fourth proportional to 13,854.12, 19,115.10 and 8,816.28 is: 12,164.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,854.12 : 19,115.10 = 8,816.28 : x
  2. Step 2: Convert to fraction form
    13,854.12/19,115.10 = 8,816.28/x
  3. Step 3: Cross multiply
    13,854.12x = 19,115.10 × 8,816.28
  4. Step 4: Simplify right side
    13,854.12x = 168,524,073.83
  5. Step 5: Solve for x
    x = 168,524,073.83/13,854.12
  6. Step 6: Final answer
    x = 12,164.18

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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.