Home / 11,137.10-16,686.45-5,281.10

Finding the Fourth Proportional to 11,137.10, 16,686.45 and 5,281.10

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Solution

The fourth proportional to 11,137.10, 16,686.45 and 5,281.10 is: 7,912.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,137.10 : 16,686.45 = 5,281.10 : x
  2. Step 2: Convert to fraction form
    11,137.10/16,686.45 = 5,281.10/x
  3. Step 3: Cross multiply
    11,137.10x = 16,686.45 × 5,281.10
  4. Step 4: Simplify right side
    11,137.10x = 88,122,811.10
  5. Step 5: Solve for x
    x = 88,122,811.10/11,137.10
  6. Step 6: Final answer
    x = 7,912.55

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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.