Home / 8,500.12-12,749.34-2,656.54

Finding the Fourth Proportional to 8,500.12, 12,749.34 and 2,656.54

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Solution

The fourth proportional to 8,500.12, 12,749.34 and 2,656.54 is: 3,984.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,500.12 : 12,749.34 = 2,656.54 : x
  2. Step 2: Convert to fraction form
    8,500.12/12,749.34 = 2,656.54/x
  3. Step 3: Cross multiply
    8,500.12x = 12,749.34 × 2,656.54
  4. Step 4: Simplify right side
    8,500.12x = 33,869,131.68
  5. Step 5: Solve for x
    x = 33,869,131.68/8,500.12
  6. Step 6: Final answer
    x = 3,984.55

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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.