Home / 15,604.20-21,534.60-8,530.56

Finding the Fourth Proportional to 15,604.20, 21,534.60 and 8,530.56

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Solution

The fourth proportional to 15,604.20, 21,534.60 and 8,530.56 is: 11,772.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,604.20 : 21,534.60 = 8,530.56 : x
  2. Step 2: Convert to fraction form
    15,604.20/21,534.60 = 8,530.56/x
  3. Step 3: Cross multiply
    15,604.20x = 21,534.60 × 8,530.56
  4. Step 4: Simplify right side
    15,604.20x = 183,702,197.38
  5. Step 5: Solve for x
    x = 183,702,197.38/15,604.20
  6. Step 6: Final answer
    x = 11,772.61

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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.