Home / 12,022.93-18,043.70-7,861.81

Finding the Fourth Proportional to 12,022.93, 18,043.70 and 7,861.81

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Solution

The fourth proportional to 12,022.93, 18,043.70 and 7,861.81 is: 11,798.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,022.93 : 18,043.70 = 7,861.81 : x
  2. Step 2: Convert to fraction form
    12,022.93/18,043.70 = 7,861.81/x
  3. Step 3: Cross multiply
    12,022.93x = 18,043.70 × 7,861.81
  4. Step 4: Simplify right side
    12,022.93x = 141,856,141.10
  5. Step 5: Solve for x
    x = 141,856,141.10/12,022.93
  6. Step 6: Final answer
    x = 11,798.80

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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.