Home / 13,566.75-20,442.56-11,155.58

Finding the Fourth Proportional to 13,566.75, 20,442.56 and 11,155.58

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Solution

The fourth proportional to 13,566.75, 20,442.56 and 11,155.58 is: 16,809.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,566.75 : 20,442.56 = 11,155.58 : x
  2. Step 2: Convert to fraction form
    13,566.75/20,442.56 = 11,155.58/x
  3. Step 3: Cross multiply
    13,566.75x = 20,442.56 × 11,155.58
  4. Step 4: Simplify right side
    13,566.75x = 228,048,613.48
  5. Step 5: Solve for x
    x = 228,048,613.48/13,566.75
  6. Step 6: Final answer
    x = 16,809.38

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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.