Home / 11,529.72-17,281.62-5,690.43

Finding the Fourth Proportional to 11,529.72, 17,281.62 and 5,690.43

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Solution

The fourth proportional to 11,529.72, 17,281.62 and 5,690.43 is: 8,529.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,529.72 : 17,281.62 = 5,690.43 : x
  2. Step 2: Convert to fraction form
    11,529.72/17,281.62 = 5,690.43/x
  3. Step 3: Cross multiply
    11,529.72x = 17,281.62 × 5,690.43
  4. Step 4: Simplify right side
    11,529.72x = 98,339,848.90
  5. Step 5: Solve for x
    x = 98,339,848.90/11,529.72
  6. Step 6: Final answer
    x = 8,529.25

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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.