Home / 12,578.40-17,357.76-7,273.44

Finding the Fourth Proportional to 12,578.40, 17,357.76 and 7,273.44

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Solution

The fourth proportional to 12,578.40, 17,357.76 and 7,273.44 is: 10,037.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,578.40 : 17,357.76 = 7,273.44 : x
  2. Step 2: Convert to fraction form
    12,578.40/17,357.76 = 7,273.44/x
  3. Step 3: Cross multiply
    12,578.40x = 17,357.76 × 7,273.44
  4. Step 4: Simplify right side
    12,578.40x = 126,250,625.89
  5. Step 5: Solve for x
    x = 126,250,625.89/12,578.40
  6. Step 6: Final answer
    x = 10,037.10

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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.