Home / 13,468.86-18,579.58-11,211.58

Finding the Fourth Proportional to 13,468.86, 18,579.58 and 11,211.58

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Solution

The fourth proportional to 13,468.86, 18,579.58 and 11,211.58 is: 15,465.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,468.86 : 18,579.58 = 11,211.58 : x
  2. Step 2: Convert to fraction form
    13,468.86/18,579.58 = 11,211.58/x
  3. Step 3: Cross multiply
    13,468.86x = 18,579.58 × 11,211.58
  4. Step 4: Simplify right side
    13,468.86x = 208,306,447.54
  5. Step 5: Solve for x
    x = 208,306,447.54/13,468.86
  6. Step 6: Final answer
    x = 15,465.78

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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.