Home / 11,745.02-17,618.16-2,980

Finding the Fourth Proportional to 11,745.02, 17,618.16 and 2,980

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Solution

The fourth proportional to 11,745.02, 17,618.16 and 2,980 is: 4,470.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,745.02 : 17,618.16 = 2,980 : x
  2. Step 2: Convert to fraction form
    11,745.02/17,618.16 = 2,980/x
  3. Step 3: Cross multiply
    11,745.02x = 17,618.16 × 2,980
  4. Step 4: Simplify right side
    11,745.02x = 52,502,116.80
  5. Step 5: Solve for x
    x = 52,502,116.80/11,745.02
  6. Step 6: Final answer
    x = 4,470.16

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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.