Home / 8,531.80-12,797.70-4,145.48

Finding the Fourth Proportional to 8,531.80, 12,797.70 and 4,145.48

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Solution

The fourth proportional to 8,531.80, 12,797.70 and 4,145.48 is: 6,218.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.80 : 12,797.70 = 4,145.48 : x
  2. Step 2: Convert to fraction form
    8,531.80/12,797.70 = 4,145.48/x
  3. Step 3: Cross multiply
    8,531.80x = 12,797.70 × 4,145.48
  4. Step 4: Simplify right side
    8,531.80x = 53,052,609.40
  5. Step 5: Solve for x
    x = 53,052,609.40/8,531.80
  6. Step 6: Final answer
    x = 6,218.22

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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.