Home / 11,188.20-16,781.58-3,397.08

Finding the Fourth Proportional to 11,188.20, 16,781.58 and 3,397.08

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Solution

The fourth proportional to 11,188.20, 16,781.58 and 3,397.08 is: 5,095.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.20 : 16,781.58 = 3,397.08 : x
  2. Step 2: Convert to fraction form
    11,188.20/16,781.58 = 3,397.08/x
  3. Step 3: Cross multiply
    11,188.20x = 16,781.58 × 3,397.08
  4. Step 4: Simplify right side
    11,188.20x = 57,008,369.79
  5. Step 5: Solve for x
    x = 57,008,369.79/11,188.20
  6. Step 6: Final answer
    x = 5,095.40

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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.