Home / 14,081.70-19,437.62-8,115.76

Finding the Fourth Proportional to 14,081.70, 19,437.62 and 8,115.76

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Solution

The fourth proportional to 14,081.70, 19,437.62 and 8,115.76 is: 11,202.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,081.70 : 19,437.62 = 8,115.76 : x
  2. Step 2: Convert to fraction form
    14,081.70/19,437.62 = 8,115.76/x
  3. Step 3: Cross multiply
    14,081.70x = 19,437.62 × 8,115.76
  4. Step 4: Simplify right side
    14,081.70x = 157,751,058.89
  5. Step 5: Solve for x
    x = 157,751,058.89/14,081.70
  6. Step 6: Final answer
    x = 11,202.56

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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.