Home / 10,809.60-16,192.80-6,187.20

Finding the Fourth Proportional to 10,809.60, 16,192.80 and 6,187.20

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Solution

The fourth proportional to 10,809.60, 16,192.80 and 6,187.20 is: 9,268.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,809.60 : 16,192.80 = 6,187.20 : x
  2. Step 2: Convert to fraction form
    10,809.60/16,192.80 = 6,187.20/x
  3. Step 3: Cross multiply
    10,809.60x = 16,192.80 × 6,187.20
  4. Step 4: Simplify right side
    10,809.60x = 100,188,092.16
  5. Step 5: Solve for x
    x = 100,188,092.16/10,809.60
  6. Step 6: Final answer
    x = 9,268.44

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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.