Home / 12,543.72-18,813.98-3,310.44

Finding the Fourth Proportional to 12,543.72, 18,813.98 and 3,310.44

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Solution

The fourth proportional to 12,543.72, 18,813.98 and 3,310.44 is: 4,965.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543.72 : 18,813.98 = 3,310.44 : x
  2. Step 2: Convert to fraction form
    12,543.72/18,813.98 = 3,310.44/x
  3. Step 3: Cross multiply
    12,543.72x = 18,813.98 × 3,310.44
  4. Step 4: Simplify right side
    12,543.72x = 62,282,551.95
  5. Step 5: Solve for x
    x = 62,282,551.95/12,543.72
  6. Step 6: Final answer
    x = 4,965.24

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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.