Home / 8,257.55-12,386.34-3,512.48

Finding the Fourth Proportional to 8,257.55, 12,386.34 and 3,512.48

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Solution

The fourth proportional to 8,257.55, 12,386.34 and 3,512.48 is: 5,268.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,257.55 : 12,386.34 = 3,512.48 : x
  2. Step 2: Convert to fraction form
    8,257.55/12,386.34 = 3,512.48/x
  3. Step 3: Cross multiply
    8,257.55x = 12,386.34 × 3,512.48
  4. Step 4: Simplify right side
    8,257.55x = 43,506,771.52
  5. Step 5: Solve for x
    x = 43,506,771.52/8,257.55
  6. Step 6: Final answer
    x = 5,268.73

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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.