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Finding the Fourth Proportional to 13,437.59, 18,544.10 and 7,388.09

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Solution

The fourth proportional to 13,437.59, 18,544.10 and 7,388.09 is: 10,195.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.59 : 18,544.10 = 7,388.09 : x
  2. Step 2: Convert to fraction form
    13,437.59/18,544.10 = 7,388.09/x
  3. Step 3: Cross multiply
    13,437.59x = 18,544.10 × 7,388.09
  4. Step 4: Simplify right side
    13,437.59x = 137,005,447.35
  5. Step 5: Solve for x
    x = 137,005,447.35/13,437.59
  6. Step 6: Final answer
    x = 10,195.68

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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.