Home / 15,575.11-21,493.46-8,860.72

Finding the Fourth Proportional to 15,575.11, 21,493.46 and 8,860.72

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Solution

The fourth proportional to 15,575.11, 21,493.46 and 8,860.72 is: 12,227.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,575.11 : 21,493.46 = 8,860.72 : x
  2. Step 2: Convert to fraction form
    15,575.11/21,493.46 = 8,860.72/x
  3. Step 3: Cross multiply
    15,575.11x = 21,493.46 × 8,860.72
  4. Step 4: Simplify right side
    15,575.11x = 190,447,546.68
  5. Step 5: Solve for x
    x = 190,447,546.68/15,575.11
  6. Step 6: Final answer
    x = 12,227.69

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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.