Home / 13,241.08-18,270.66-7,651

Finding the Fourth Proportional to 13,241.08, 18,270.66 and 7,651

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Solution

The fourth proportional to 13,241.08, 18,270.66 and 7,651 is: 10,557.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,241.08 : 18,270.66 = 7,651 : x
  2. Step 2: Convert to fraction form
    13,241.08/18,270.66 = 7,651/x
  3. Step 3: Cross multiply
    13,241.08x = 18,270.66 × 7,651
  4. Step 4: Simplify right side
    13,241.08x = 139,788,819.66
  5. Step 5: Solve for x
    x = 139,788,819.66/13,241.08
  6. Step 6: Final answer
    x = 10,557.21

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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.