Home / 11,188.30-16,784.90-3,397.72

Finding the Fourth Proportional to 11,188.30, 16,784.90 and 3,397.72

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Solution

The fourth proportional to 11,188.30, 16,784.90 and 3,397.72 is: 5,097.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.30 : 16,784.90 = 3,397.72 : x
  2. Step 2: Convert to fraction form
    11,188.30/16,784.90 = 3,397.72/x
  3. Step 3: Cross multiply
    11,188.30x = 16,784.90 × 3,397.72
  4. Step 4: Simplify right side
    11,188.30x = 57,030,289.51
  5. Step 5: Solve for x
    x = 57,030,289.51/11,188.30
  6. Step 6: Final answer
    x = 5,097.32

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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.