Home / 13,227.15-18,256.53-8,503.23

Finding the Fourth Proportional to 13,227.15, 18,256.53 and 8,503.23

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Solution

The fourth proportional to 13,227.15, 18,256.53 and 8,503.23 is: 11,736.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,227.15 : 18,256.53 = 8,503.23 : x
  2. Step 2: Convert to fraction form
    13,227.15/18,256.53 = 8,503.23/x
  3. Step 3: Cross multiply
    13,227.15x = 18,256.53 × 8,503.23
  4. Step 4: Simplify right side
    13,227.15x = 155,239,473.59
  5. Step 5: Solve for x
    x = 155,239,473.59/13,227.15
  6. Step 6: Final answer
    x = 11,736.43

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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.