Home / 11,237.70-16,856.55-8,127.30

Finding the Fourth Proportional to 11,237.70, 16,856.55 and 8,127.30

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Solution

The fourth proportional to 11,237.70, 16,856.55 and 8,127.30 is: 12,190.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,237.70 : 16,856.55 = 8,127.30 : x
  2. Step 2: Convert to fraction form
    11,237.70/16,856.55 = 8,127.30/x
  3. Step 3: Cross multiply
    11,237.70x = 16,856.55 × 8,127.30
  4. Step 4: Simplify right side
    11,237.70x = 136,998,238.82
  5. Step 5: Solve for x
    x = 136,998,238.82/11,237.70
  6. Step 6: Final answer
    x = 12,190.95

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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.