Home / 10,537.40-15,781.80-7,232.60

Finding the Fourth Proportional to 10,537.40, 15,781.80 and 7,232.60

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Solution

The fourth proportional to 10,537.40, 15,781.80 and 7,232.60 is: 10,832.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,537.40 : 15,781.80 = 7,232.60 : x
  2. Step 2: Convert to fraction form
    10,537.40/15,781.80 = 7,232.60/x
  3. Step 3: Cross multiply
    10,537.40x = 15,781.80 × 7,232.60
  4. Step 4: Simplify right side
    10,537.40x = 114,143,446.68
  5. Step 5: Solve for x
    x = 114,143,446.68/10,537.40
  6. Step 6: Final answer
    x = 10,832.22

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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.