Home / 8,104.40-11,188.68-5,590.16

Finding the Fourth Proportional to 8,104.40, 11,188.68 and 5,590.16

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Solution

The fourth proportional to 8,104.40, 11,188.68 and 5,590.16 is: 7,717.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.40 : 11,188.68 = 5,590.16 : x
  2. Step 2: Convert to fraction form
    8,104.40/11,188.68 = 5,590.16/x
  3. Step 3: Cross multiply
    8,104.40x = 11,188.68 × 5,590.16
  4. Step 4: Simplify right side
    8,104.40x = 62,546,511.39
  5. Step 5: Solve for x
    x = 62,546,511.39/8,104.40
  6. Step 6: Final answer
    x = 7,717.60

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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.