Home / 8,436.72-12,653.36-2,591.76

Finding the Fourth Proportional to 8,436.72, 12,653.36 and 2,591.76

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Solution

The fourth proportional to 8,436.72, 12,653.36 and 2,591.76 is: 3,887.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.72 : 12,653.36 = 2,591.76 : x
  2. Step 2: Convert to fraction form
    8,436.72/12,653.36 = 2,591.76/x
  3. Step 3: Cross multiply
    8,436.72x = 12,653.36 × 2,591.76
  4. Step 4: Simplify right side
    8,436.72x = 32,794,472.31
  5. Step 5: Solve for x
    x = 32,794,472.31/8,436.72
  6. Step 6: Final answer
    x = 3,887.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.