Home / 13,536.42-18,672.42-8,155.18

Finding the Fourth Proportional to 13,536.42, 18,672.42 and 8,155.18

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Solution

The fourth proportional to 13,536.42, 18,672.42 and 8,155.18 is: 11,249.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,536.42 : 18,672.42 = 8,155.18 : x
  2. Step 2: Convert to fraction form
    13,536.42/18,672.42 = 8,155.18/x
  3. Step 3: Cross multiply
    13,536.42x = 18,672.42 × 8,155.18
  4. Step 4: Simplify right side
    13,536.42x = 152,277,000.06
  5. Step 5: Solve for x
    x = 152,277,000.06/13,536.42
  6. Step 6: Final answer
    x = 11,249.43

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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.