Home / 12,571.44-18,865.10-7,028.42

Finding the Fourth Proportional to 12,571.44, 18,865.10 and 7,028.42

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Solution

The fourth proportional to 12,571.44, 18,865.10 and 7,028.42 is: 10,547.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,571.44 : 18,865.10 = 7,028.42 : x
  2. Step 2: Convert to fraction form
    12,571.44/18,865.10 = 7,028.42/x
  3. Step 3: Cross multiply
    12,571.44x = 18,865.10 × 7,028.42
  4. Step 4: Simplify right side
    12,571.44x = 132,591,846.14
  5. Step 5: Solve for x
    x = 132,591,846.14/12,571.44
  6. Step 6: Final answer
    x = 10,547.07

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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.