Home / 13,197.12-18,207.50-7,527.80

Finding the Fourth Proportional to 13,197.12, 18,207.50 and 7,527.80

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Solution

The fourth proportional to 13,197.12, 18,207.50 and 7,527.80 is: 10,385.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.12 : 18,207.50 = 7,527.80 : x
  2. Step 2: Convert to fraction form
    13,197.12/18,207.50 = 7,527.80/x
  3. Step 3: Cross multiply
    13,197.12x = 18,207.50 × 7,527.80
  4. Step 4: Simplify right side
    13,197.12x = 137,062,418.50
  5. Step 5: Solve for x
    x = 137,062,418.50/13,197.12
  6. Step 6: Final answer
    x = 10,385.78

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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.