Home / 11,135.20-16,681.26-6,189.84

Finding the Fourth Proportional to 11,135.20, 16,681.26 and 6,189.84

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Solution

The fourth proportional to 11,135.20, 16,681.26 and 6,189.84 is: 9,272.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.20 : 16,681.26 = 6,189.84 : x
  2. Step 2: Convert to fraction form
    11,135.20/16,681.26 = 6,189.84/x
  3. Step 3: Cross multiply
    11,135.20x = 16,681.26 × 6,189.84
  4. Step 4: Simplify right side
    11,135.20x = 103,254,330.40
  5. Step 5: Solve for x
    x = 103,254,330.40/11,135.20
  6. Step 6: Final answer
    x = 9,272.79

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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.