Home / 13,566.88-20,442.75-11,155.71

Finding the Fourth Proportional to 13,566.88, 20,442.75 and 11,155.71

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Solution

The fourth proportional to 13,566.88, 20,442.75 and 11,155.71 is: 16,809.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,566.88 : 20,442.75 = 11,155.71 : x
  2. Step 2: Convert to fraction form
    13,566.88/20,442.75 = 11,155.71/x
  3. Step 3: Cross multiply
    13,566.88x = 20,442.75 × 11,155.71
  4. Step 4: Simplify right side
    13,566.88x = 228,053,390.60
  5. Step 5: Solve for x
    x = 228,053,390.60/13,566.88
  6. Step 6: Final answer
    x = 16,809.57

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Similar ratio
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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.