Home / 15,286.73-21,094.22-8,570.81

Finding the Fourth Proportional to 15,286.73, 21,094.22 and 8,570.81

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Solution

The fourth proportional to 15,286.73, 21,094.22 and 8,570.81 is: 11,826.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,286.73 : 21,094.22 = 8,570.81 : x
  2. Step 2: Convert to fraction form
    15,286.73/21,094.22 = 8,570.81/x
  3. Step 3: Cross multiply
    15,286.73x = 21,094.22 × 8,570.81
  4. Step 4: Simplify right side
    15,286.73x = 180,794,625.88
  5. Step 5: Solve for x
    x = 180,794,625.88/15,286.73
  6. Step 6: Final answer
    x = 11,826.90

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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.