Home / 11,805.20-16,291.44-6,500.12

Finding the Fourth Proportional to 11,805.20, 16,291.44 and 6,500.12

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Solution

The fourth proportional to 11,805.20, 16,291.44 and 6,500.12 is: 8,970.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,805.20 : 16,291.44 = 6,500.12 : x
  2. Step 2: Convert to fraction form
    11,805.20/16,291.44 = 6,500.12/x
  3. Step 3: Cross multiply
    11,805.20x = 16,291.44 × 6,500.12
  4. Step 4: Simplify right side
    11,805.20x = 105,896,314.97
  5. Step 5: Solve for x
    x = 105,896,314.97/11,805.20
  6. Step 6: Final answer
    x = 8,970.31

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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.