Home / 11,268.39-16,988.15-10,665.60

Finding the Fourth Proportional to 11,268.39, 16,988.15 and 10,665.60

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Solution

The fourth proportional to 11,268.39, 16,988.15 and 10,665.60 is: 16,079.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,268.39 : 16,988.15 = 10,665.60 : x
  2. Step 2: Convert to fraction form
    11,268.39/16,988.15 = 10,665.60/x
  3. Step 3: Cross multiply
    11,268.39x = 16,988.15 × 10,665.60
  4. Step 4: Simplify right side
    11,268.39x = 181,188,715.60
  5. Step 5: Solve for x
    x = 181,188,715.60/11,268.39
  6. Step 6: Final answer
    x = 16,079.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.