Home / 12,785.44-17,646.96-7,196.80

Finding the Fourth Proportional to 12,785.44, 17,646.96 and 7,196.80

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Solution

The fourth proportional to 12,785.44, 17,646.96 and 7,196.80 is: 9,933.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785.44 : 17,646.96 = 7,196.80 : x
  2. Step 2: Convert to fraction form
    12,785.44/17,646.96 = 7,196.80/x
  3. Step 3: Cross multiply
    12,785.44x = 17,646.96 × 7,196.80
  4. Step 4: Simplify right side
    12,785.44x = 127,001,641.73
  5. Step 5: Solve for x
    x = 127,001,641.73/12,785.44
  6. Step 6: Final answer
    x = 9,933.30

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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.