Home / 8,146.88-12,220.80-3,530.24

Finding the Fourth Proportional to 8,146.88, 12,220.80 and 3,530.24

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Solution

The fourth proportional to 8,146.88, 12,220.80 and 3,530.24 is: 5,295.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,146.88 : 12,220.80 = 3,530.24 : x
  2. Step 2: Convert to fraction form
    8,146.88/12,220.80 = 3,530.24/x
  3. Step 3: Cross multiply
    8,146.88x = 12,220.80 × 3,530.24
  4. Step 4: Simplify right side
    8,146.88x = 43,142,356.99
  5. Step 5: Solve for x
    x = 43,142,356.99/8,146.88
  6. Step 6: Final answer
    x = 5,295.57

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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.