Home / 15,647.08-21,566.10-11,448.04

Finding the Fourth Proportional to 15,647.08, 21,566.10 and 11,448.04

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Solution

The fourth proportional to 15,647.08, 21,566.10 and 11,448.04 is: 15,778.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,647.08 : 21,566.10 = 11,448.04 : x
  2. Step 2: Convert to fraction form
    15,647.08/21,566.10 = 11,448.04/x
  3. Step 3: Cross multiply
    15,647.08x = 21,566.10 × 11,448.04
  4. Step 4: Simplify right side
    15,647.08x = 246,889,575.44
  5. Step 5: Solve for x
    x = 246,889,575.44/15,647.08
  6. Step 6: Final answer
    x = 15,778.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.