Home / 11,113.20-16,661.16-5,276.88

Finding the Fourth Proportional to 11,113.20, 16,661.16 and 5,276.88

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Solution

The fourth proportional to 11,113.20, 16,661.16 and 5,276.88 is: 7,911.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.20 : 16,661.16 = 5,276.88 : x
  2. Step 2: Convert to fraction form
    11,113.20/16,661.16 = 5,276.88/x
  3. Step 3: Cross multiply
    11,113.20x = 16,661.16 × 5,276.88
  4. Step 4: Simplify right side
    11,113.20x = 87,918,941.98
  5. Step 5: Solve for x
    x = 87,918,941.98/11,113.20
  6. Step 6: Final answer
    x = 7,911.22

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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.