Home / 7,811.73-11,718.63-4,114.23

Finding the Fourth Proportional to 7,811.73, 11,718.63 and 4,114.23

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Solution

The fourth proportional to 7,811.73, 11,718.63 and 4,114.23 is: 6,171.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,811.73 : 11,718.63 = 4,114.23 : x
  2. Step 2: Convert to fraction form
    7,811.73/11,718.63 = 4,114.23/x
  3. Step 3: Cross multiply
    7,811.73x = 11,718.63 × 4,114.23
  4. Step 4: Simplify right side
    7,811.73x = 48,213,139.10
  5. Step 5: Solve for x
    x = 48,213,139.10/7,811.73
  6. Step 6: Final answer
    x = 6,171.89

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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.