Home / 8,360.16-12,540.86-2,813.48

Finding the Fourth Proportional to 8,360.16, 12,540.86 and 2,813.48

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Solution

The fourth proportional to 8,360.16, 12,540.86 and 2,813.48 is: 4,220.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,360.16 : 12,540.86 = 2,813.48 : x
  2. Step 2: Convert to fraction form
    8,360.16/12,540.86 = 2,813.48/x
  3. Step 3: Cross multiply
    8,360.16x = 12,540.86 × 2,813.48
  4. Step 4: Simplify right side
    8,360.16x = 35,283,458.79
  5. Step 5: Solve for x
    x = 35,283,458.79/8,360.16
  6. Step 6: Final answer
    x = 4,220.43

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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.