Home / 13,204.80-18,222.32-7,539.41

Finding the Fourth Proportional to 13,204.80, 18,222.32 and 7,539.41

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Solution

The fourth proportional to 13,204.80, 18,222.32 and 7,539.41 is: 10,404.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,204.80 : 18,222.32 = 7,539.41 : x
  2. Step 2: Convert to fraction form
    13,204.80/18,222.32 = 7,539.41/x
  3. Step 3: Cross multiply
    13,204.80x = 18,222.32 × 7,539.41
  4. Step 4: Simplify right side
    13,204.80x = 137,385,503.93
  5. Step 5: Solve for x
    x = 137,385,503.93/13,204.80
  6. Step 6: Final answer
    x = 10,404.21

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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.