Home / 12,759.32-17,601.40-8,285.56

Finding the Fourth Proportional to 12,759.32, 17,601.40 and 8,285.56

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Solution

The fourth proportional to 12,759.32, 17,601.40 and 8,285.56 is: 11,429.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,759.32 : 17,601.40 = 8,285.56 : x
  2. Step 2: Convert to fraction form
    12,759.32/17,601.40 = 8,285.56/x
  3. Step 3: Cross multiply
    12,759.32x = 17,601.40 × 8,285.56
  4. Step 4: Simplify right side
    12,759.32x = 145,837,422.14
  5. Step 5: Solve for x
    x = 145,837,422.14/12,759.32
  6. Step 6: Final answer
    x = 11,429.87

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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.