Home / 16,861.89-25,291.93-5,175.11

Finding the Fourth Proportional to 16,861.89, 25,291.93 and 5,175.11

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Solution

The fourth proportional to 16,861.89, 25,291.93 and 5,175.11 is: 7,762.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,861.89 : 25,291.93 = 5,175.11 : x
  2. Step 2: Convert to fraction form
    16,861.89/25,291.93 = 5,175.11/x
  3. Step 3: Cross multiply
    16,861.89x = 25,291.93 × 5,175.11
  4. Step 4: Simplify right side
    16,861.89x = 130,888,519.86
  5. Step 5: Solve for x
    x = 130,888,519.86/16,861.89
  6. Step 6: Final answer
    x = 7,762.39

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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.