Home / 13,445.52-18,544.32-9,199.11

Finding the Fourth Proportional to 13,445.52, 18,544.32 and 9,199.11

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Solution

The fourth proportional to 13,445.52, 18,544.32 and 9,199.11 is: 12,687.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.52 : 18,544.32 = 9,199.11 : x
  2. Step 2: Convert to fraction form
    13,445.52/18,544.32 = 9,199.11/x
  3. Step 3: Cross multiply
    13,445.52x = 18,544.32 × 9,199.11
  4. Step 4: Simplify right side
    13,445.52x = 170,591,239.56
  5. Step 5: Solve for x
    x = 170,591,239.56/13,445.52
  6. Step 6: Final answer
    x = 12,687.59

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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.