Home / 12,496.70-18,723.06-11,140.76

Finding the Fourth Proportional to 12,496.70, 18,723.06 and 11,140.76

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Solution

The fourth proportional to 12,496.70, 18,723.06 and 11,140.76 is: 16,691.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,496.70 : 18,723.06 = 11,140.76 : x
  2. Step 2: Convert to fraction form
    12,496.70/18,723.06 = 11,140.76/x
  3. Step 3: Cross multiply
    12,496.70x = 18,723.06 × 11,140.76
  4. Step 4: Simplify right side
    12,496.70x = 208,589,117.93
  5. Step 5: Solve for x
    x = 208,589,117.93/12,496.70
  6. Step 6: Final answer
    x = 16,691.54

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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.