Home / 11,120.68-16,681.02-6,739.39

Finding the Fourth Proportional to 11,120.68, 16,681.02 and 6,739.39

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Solution

The fourth proportional to 11,120.68, 16,681.02 and 6,739.39 is: 10,109.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.68 : 16,681.02 = 6,739.39 : x
  2. Step 2: Convert to fraction form
    11,120.68/16,681.02 = 6,739.39/x
  3. Step 3: Cross multiply
    11,120.68x = 16,681.02 × 6,739.39
  4. Step 4: Simplify right side
    11,120.68x = 112,419,899.38
  5. Step 5: Solve for x
    x = 112,419,899.38/11,120.68
  6. Step 6: Final answer
    x = 10,109.09

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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.