Home / 11,619.72-16,019.64-11,371.32

Finding the Fourth Proportional to 11,619.72, 16,019.64 and 11,371.32

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Solution

The fourth proportional to 11,619.72, 16,019.64 and 11,371.32 is: 15,677.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619.72 : 16,019.64 = 11,371.32 : x
  2. Step 2: Convert to fraction form
    11,619.72/16,019.64 = 11,371.32/x
  3. Step 3: Cross multiply
    11,619.72x = 16,019.64 × 11,371.32
  4. Step 4: Simplify right side
    11,619.72x = 182,164,452.72
  5. Step 5: Solve for x
    x = 182,164,452.72/11,619.72
  6. Step 6: Final answer
    x = 15,677.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.