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Finding the Fourth Proportional to 11,952.95, 17,909.49 and 8,437.22

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Solution

The fourth proportional to 11,952.95, 17,909.49 and 8,437.22 is: 12,641.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,952.95 : 17,909.49 = 8,437.22 : x
  2. Step 2: Convert to fraction form
    11,952.95/17,909.49 = 8,437.22/x
  3. Step 3: Cross multiply
    11,952.95x = 17,909.49 × 8,437.22
  4. Step 4: Simplify right side
    11,952.95x = 151,106,217.67
  5. Step 5: Solve for x
    x = 151,106,217.67/11,952.95
  6. Step 6: Final answer
    x = 12,641.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.