Home / 7,149.33-10,725.75-5,775.12

Finding the Fourth Proportional to 7,149.33, 10,725.75 and 5,775.12

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Solution

The fourth proportional to 7,149.33, 10,725.75 and 5,775.12 is: 8,664.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.33 : 10,725.75 = 5,775.12 : x
  2. Step 2: Convert to fraction form
    7,149.33/10,725.75 = 5,775.12/x
  3. Step 3: Cross multiply
    7,149.33x = 10,725.75 × 5,775.12
  4. Step 4: Simplify right side
    7,149.33x = 61,942,493.34
  5. Step 5: Solve for x
    x = 61,942,493.34/7,149.33
  6. Step 6: Final answer
    x = 8,664.10

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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.