Home / 8,192.39-11,268.98-7,179.08

Finding the Fourth Proportional to 8,192.39, 11,268.98 and 7,179.08

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Solution

The fourth proportional to 8,192.39, 11,268.98 and 7,179.08 is: 9,875.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,192.39 : 11,268.98 = 7,179.08 : x
  2. Step 2: Convert to fraction form
    8,192.39/11,268.98 = 7,179.08/x
  3. Step 3: Cross multiply
    8,192.39x = 11,268.98 × 7,179.08
  4. Step 4: Simplify right side
    8,192.39x = 80,900,928.14
  5. Step 5: Solve for x
    x = 80,900,928.14/8,192.39
  6. Step 6: Final answer
    x = 9,875.13

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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.