Home / 8,965.67-13,467.96-7,581.78

Finding the Fourth Proportional to 8,965.67, 13,467.96 and 7,581.78

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Solution

The fourth proportional to 8,965.67, 13,467.96 and 7,581.78 is: 11,389.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.67 : 13,467.96 = 7,581.78 : x
  2. Step 2: Convert to fraction form
    8,965.67/13,467.96 = 7,581.78/x
  3. Step 3: Cross multiply
    8,965.67x = 13,467.96 × 7,581.78
  4. Step 4: Simplify right side
    8,965.67x = 102,111,109.77
  5. Step 5: Solve for x
    x = 102,111,109.77/8,965.67
  6. Step 6: Final answer
    x = 11,389.13

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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.