Home / 12,449.13-17,181.63-8,199.52

Finding the Fourth Proportional to 12,449.13, 17,181.63 and 8,199.52

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Solution

The fourth proportional to 12,449.13, 17,181.63 and 8,199.52 is: 11,316.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449.13 : 17,181.63 = 8,199.52 : x
  2. Step 2: Convert to fraction form
    12,449.13/17,181.63 = 8,199.52/x
  3. Step 3: Cross multiply
    12,449.13x = 17,181.63 × 8,199.52
  4. Step 4: Simplify right side
    12,449.13x = 140,881,118.82
  5. Step 5: Solve for x
    x = 140,881,118.82/12,449.13
  6. Step 6: Final answer
    x = 11,316.54

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1.5x scale

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.