Home / 12,500.39-18,750.58-5,103.54

Finding the Fourth Proportional to 12,500.39, 18,750.58 and 5,103.54

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Solution

The fourth proportional to 12,500.39, 18,750.58 and 5,103.54 is: 7,655.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,500.39 : 18,750.58 = 5,103.54 : x
  2. Step 2: Convert to fraction form
    12,500.39/18,750.58 = 5,103.54/x
  3. Step 3: Cross multiply
    12,500.39x = 18,750.58 × 5,103.54
  4. Step 4: Simplify right side
    12,500.39x = 95,694,335.05
  5. Step 5: Solve for x
    x = 95,694,335.05/12,500.39
  6. Step 6: Final answer
    x = 7,655.31

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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.