Home / 11,245.80-15,518.82-6,209.94

Finding the Fourth Proportional to 11,245.80, 15,518.82 and 6,209.94

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Solution

The fourth proportional to 11,245.80, 15,518.82 and 6,209.94 is: 8,569.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,245.80 : 15,518.82 = 6,209.94 : x
  2. Step 2: Convert to fraction form
    11,245.80/15,518.82 = 6,209.94/x
  3. Step 3: Cross multiply
    11,245.80x = 15,518.82 × 6,209.94
  4. Step 4: Simplify right side
    11,245.80x = 96,370,941.07
  5. Step 5: Solve for x
    x = 96,370,941.07/11,245.80
  6. Step 6: Final answer
    x = 8,569.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.