Home / 10,583.90-15,878.14-3,187.78

Finding the Fourth Proportional to 10,583.90, 15,878.14 and 3,187.78

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Solution

The fourth proportional to 10,583.90, 15,878.14 and 3,187.78 is: 4,782.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,583.90 : 15,878.14 = 3,187.78 : x
  2. Step 2: Convert to fraction form
    10,583.90/15,878.14 = 3,187.78/x
  3. Step 3: Cross multiply
    10,583.90x = 15,878.14 × 3,187.78
  4. Step 4: Simplify right side
    10,583.90x = 50,616,017.13
  5. Step 5: Solve for x
    x = 50,616,017.13/10,583.90
  6. Step 6: Final answer
    x = 4,782.36

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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.