Home / 12,456.08-17,190.44-6,868.24

Finding the Fourth Proportional to 12,456.08, 17,190.44 and 6,868.24

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Solution

The fourth proportional to 12,456.08, 17,190.44 and 6,868.24 is: 9,478.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456.08 : 17,190.44 = 6,868.24 : x
  2. Step 2: Convert to fraction form
    12,456.08/17,190.44 = 6,868.24/x
  3. Step 3: Cross multiply
    12,456.08x = 17,190.44 × 6,868.24
  4. Step 4: Simplify right side
    12,456.08x = 118,068,067.63
  5. Step 5: Solve for x
    x = 118,068,067.63/12,456.08
  6. Step 6: Final answer
    x = 9,478.75

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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.