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Finding the Fourth Proportional to 15,181.97, 22,779.43 and 7,388.69

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Solution

The fourth proportional to 15,181.97, 22,779.43 and 7,388.69 is: 11,086.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,181.97 : 22,779.43 = 7,388.69 : x
  2. Step 2: Convert to fraction form
    15,181.97/22,779.43 = 7,388.69/x
  3. Step 3: Cross multiply
    15,181.97x = 22,779.43 × 7,388.69
  4. Step 4: Simplify right side
    15,181.97x = 168,310,014.28
  5. Step 5: Solve for x
    x = 168,310,014.28/15,181.97
  6. Step 6: Final answer
    x = 11,086.18

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1.5x scale

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.