Home / 13,482.39-18,610.58-8,177.09

Finding the Fourth Proportional to 13,482.39, 18,610.58 and 8,177.09

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Solution

The fourth proportional to 13,482.39, 18,610.58 and 8,177.09 is: 11,287.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,482.39 : 18,610.58 = 8,177.09 : x
  2. Step 2: Convert to fraction form
    13,482.39/18,610.58 = 8,177.09/x
  3. Step 3: Cross multiply
    13,482.39x = 18,610.58 × 8,177.09
  4. Step 4: Simplify right side
    13,482.39x = 152,180,454.58
  5. Step 5: Solve for x
    x = 152,180,454.58/13,482.39
  6. Step 6: Final answer
    x = 11,287.35

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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.