Home / 8,736.30-13,104.45-3,187.80

Finding the Fourth Proportional to 8,736.30, 13,104.45 and 3,187.80

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Solution

The fourth proportional to 8,736.30, 13,104.45 and 3,187.80 is: 4,781.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736.30 : 13,104.45 = 3,187.80 : x
  2. Step 2: Convert to fraction form
    8,736.30/13,104.45 = 3,187.80/x
  3. Step 3: Cross multiply
    8,736.30x = 13,104.45 × 3,187.80
  4. Step 4: Simplify right side
    8,736.30x = 41,774,365.71
  5. Step 5: Solve for x
    x = 41,774,365.71/8,736.30
  6. Step 6: Final answer
    x = 4,781.70

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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.