Home / 18,651.75-27,985.46-7,566.36

Finding the Fourth Proportional to 18,651.75, 27,985.46 and 7,566.36

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Solution

The fourth proportional to 18,651.75, 27,985.46 and 7,566.36 is: 11,352.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,651.75 : 27,985.46 = 7,566.36 : x
  2. Step 2: Convert to fraction form
    18,651.75/27,985.46 = 7,566.36/x
  3. Step 3: Cross multiply
    18,651.75x = 27,985.46 × 7,566.36
  4. Step 4: Simplify right side
    18,651.75x = 211,748,027.29
  5. Step 5: Solve for x
    x = 211,748,027.29/18,651.75
  6. Step 6: Final answer
    x = 11,352.72

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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.