Home / 11,122.90-16,684.34-7,853.34

Finding the Fourth Proportional to 11,122.90, 16,684.34 and 7,853.34

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Solution

The fourth proportional to 11,122.90, 16,684.34 and 7,853.34 is: 11,780.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.90 : 16,684.34 = 7,853.34 : x
  2. Step 2: Convert to fraction form
    11,122.90/16,684.34 = 7,853.34/x
  3. Step 3: Cross multiply
    11,122.90x = 16,684.34 × 7,853.34
  4. Step 4: Simplify right side
    11,122.90x = 131,027,794.70
  5. Step 5: Solve for x
    x = 131,027,794.70/11,122.90
  6. Step 6: Final answer
    x = 11,780.00

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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.