Home / 12,437.25-17,177.99-8,238.21

Finding the Fourth Proportional to 12,437.25, 17,177.99 and 8,238.21

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Solution

The fourth proportional to 12,437.25, 17,177.99 and 8,238.21 is: 11,378.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,437.25 : 17,177.99 = 8,238.21 : x
  2. Step 2: Convert to fraction form
    12,437.25/17,177.99 = 8,238.21/x
  3. Step 3: Cross multiply
    12,437.25x = 17,177.99 × 8,238.21
  4. Step 4: Simplify right side
    12,437.25x = 141,515,847.81
  5. Step 5: Solve for x
    x = 141,515,847.81/12,437.25
  6. Step 6: Final answer
    x = 11,378.39

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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.