Home / 18,695.56-25,798.96-11,141.72

Finding the Fourth Proportional to 18,695.56, 25,798.96 and 11,141.72

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Solution

The fourth proportional to 18,695.56, 25,798.96 and 11,141.72 is: 15,375.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,695.56 : 25,798.96 = 11,141.72 : x
  2. Step 2: Convert to fraction form
    18,695.56/25,798.96 = 11,141.72/x
  3. Step 3: Cross multiply
    18,695.56x = 25,798.96 × 11,141.72
  4. Step 4: Simplify right side
    18,695.56x = 287,444,788.61
  5. Step 5: Solve for x
    x = 287,444,788.61/18,695.56
  6. Step 6: Final answer
    x = 15,375.03

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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.