Home / 11,328.69-16,987.54-4,753.11

Finding the Fourth Proportional to 11,328.69, 16,987.54 and 4,753.11

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Solution

The fourth proportional to 11,328.69, 16,987.54 and 4,753.11 is: 7,127.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.69 : 16,987.54 = 4,753.11 : x
  2. Step 2: Convert to fraction form
    11,328.69/16,987.54 = 4,753.11/x
  3. Step 3: Cross multiply
    11,328.69x = 16,987.54 × 4,753.11
  4. Step 4: Simplify right side
    11,328.69x = 80,743,646.25
  5. Step 5: Solve for x
    x = 80,743,646.25/11,328.69
  6. Step 6: Final answer
    x = 7,127.36

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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.