Home / 11,239.22-16,873.41-8,643.98

Finding the Fourth Proportional to 11,239.22, 16,873.41 and 8,643.98

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Solution

The fourth proportional to 11,239.22, 16,873.41 and 8,643.98 is: 12,977.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.22 : 16,873.41 = 8,643.98 : x
  2. Step 2: Convert to fraction form
    11,239.22/16,873.41 = 8,643.98/x
  3. Step 3: Cross multiply
    11,239.22x = 16,873.41 × 8,643.98
  4. Step 4: Simplify right side
    11,239.22x = 145,853,418.57
  5. Step 5: Solve for x
    x = 145,853,418.57/11,239.22
  6. Step 6: Final answer
    x = 12,977.18

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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.