Home / 11,856.28-17,772.12-5,285.56

Finding the Fourth Proportional to 11,856.28, 17,772.12 and 5,285.56

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Solution

The fourth proportional to 11,856.28, 17,772.12 and 5,285.56 is: 7,922.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,856.28 : 17,772.12 = 5,285.56 : x
  2. Step 2: Convert to fraction form
    11,856.28/17,772.12 = 5,285.56/x
  3. Step 3: Cross multiply
    11,856.28x = 17,772.12 × 5,285.56
  4. Step 4: Simplify right side
    11,856.28x = 93,935,606.59
  5. Step 5: Solve for x
    x = 93,935,606.59/11,856.28
  6. Step 6: Final answer
    x = 7,922.86

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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.