Home / 8,985.74-13,477.91-3,719.39

Finding the Fourth Proportional to 8,985.74, 13,477.91 and 3,719.39

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Solution

The fourth proportional to 8,985.74, 13,477.91 and 3,719.39 is: 5,578.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.74 : 13,477.91 = 3,719.39 : x
  2. Step 2: Convert to fraction form
    8,985.74/13,477.91 = 3,719.39/x
  3. Step 3: Cross multiply
    8,985.74x = 13,477.91 × 3,719.39
  4. Step 4: Simplify right side
    8,985.74x = 50,129,517.69
  5. Step 5: Solve for x
    x = 50,129,517.69/8,985.74
  6. Step 6: Final answer
    x = 5,578.79

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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.