Home / 11,107.60-16,666.20-5,261.20

Finding the Fourth Proportional to 11,107.60, 16,666.20 and 5,261.20

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Solution

The fourth proportional to 11,107.60, 16,666.20 and 5,261.20 is: 7,894.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,107.60 : 16,666.20 = 5,261.20 : x
  2. Step 2: Convert to fraction form
    11,107.60/16,666.20 = 5,261.20/x
  3. Step 3: Cross multiply
    11,107.60x = 16,666.20 × 5,261.20
  4. Step 4: Simplify right side
    11,107.60x = 87,684,211.44
  5. Step 5: Solve for x
    x = 87,684,211.44/11,107.60
  6. Step 6: Final answer
    x = 7,894.07

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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.