Home / 18,690.08-25,791.18-10,731.56

Finding the Fourth Proportional to 18,690.08, 25,791.18 and 10,731.56

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Solution

The fourth proportional to 18,690.08, 25,791.18 and 10,731.56 is: 14,808.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690.08 : 25,791.18 = 10,731.56 : x
  2. Step 2: Convert to fraction form
    18,690.08/25,791.18 = 10,731.56/x
  3. Step 3: Cross multiply
    18,690.08x = 25,791.18 × 10,731.56
  4. Step 4: Simplify right side
    18,690.08x = 276,779,595.64
  5. Step 5: Solve for x
    x = 276,779,595.64/18,690.08
  6. Step 6: Final answer
    x = 14,808.90

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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.