Home / 12,755.38-19,129.60-8,068.35

Finding the Fourth Proportional to 12,755.38, 19,129.60 and 8,068.35

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Solution

The fourth proportional to 12,755.38, 19,129.60 and 8,068.35 is: 12,100.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,755.38 : 19,129.60 = 8,068.35 : x
  2. Step 2: Convert to fraction form
    12,755.38/19,129.60 = 8,068.35/x
  3. Step 3: Cross multiply
    12,755.38x = 19,129.60 × 8,068.35
  4. Step 4: Simplify right side
    12,755.38x = 154,344,308.16
  5. Step 5: Solve for x
    x = 154,344,308.16/12,755.38
  6. Step 6: Final answer
    x = 12,100.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.