Home / 12,649.67-18,979.43-5,252.25

Finding the Fourth Proportional to 12,649.67, 18,979.43 and 5,252.25

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Solution

The fourth proportional to 12,649.67, 18,979.43 and 5,252.25 is: 7,880.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,649.67 : 18,979.43 = 5,252.25 : x
  2. Step 2: Convert to fraction form
    12,649.67/18,979.43 = 5,252.25/x
  3. Step 3: Cross multiply
    12,649.67x = 18,979.43 × 5,252.25
  4. Step 4: Simplify right side
    12,649.67x = 99,684,711.22
  5. Step 5: Solve for x
    x = 99,684,711.22/12,649.67
  6. Step 6: Final answer
    x = 7,880.42

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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.