Home / 15,604.38-21,534.26-8,530.79

Finding the Fourth Proportional to 15,604.38, 21,534.26 and 8,530.79

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Solution

The fourth proportional to 15,604.38, 21,534.26 and 8,530.79 is: 11,772.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,604.38 : 21,534.26 = 8,530.79 : x
  2. Step 2: Convert to fraction form
    15,604.38/21,534.26 = 8,530.79/x
  3. Step 3: Cross multiply
    15,604.38x = 21,534.26 × 8,530.79
  4. Step 4: Simplify right side
    15,604.38x = 183,704,099.54
  5. Step 5: Solve for x
    x = 183,704,099.54/15,604.38
  6. Step 6: Final answer
    x = 11,772.60

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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.