Home / 10,629.09-15,943.50-4,781.57

Finding the Fourth Proportional to 10,629.09, 15,943.50 and 4,781.57

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Solution

The fourth proportional to 10,629.09, 15,943.50 and 4,781.57 is: 7,172.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,629.09 : 15,943.50 = 4,781.57 : x
  2. Step 2: Convert to fraction form
    10,629.09/15,943.50 = 4,781.57/x
  3. Step 3: Cross multiply
    10,629.09x = 15,943.50 × 4,781.57
  4. Step 4: Simplify right side
    10,629.09x = 76,234,881.58
  5. Step 5: Solve for x
    x = 76,234,881.58/10,629.09
  6. Step 6: Final answer
    x = 7,172.29

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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.