Home / 7,865.75-11,800.45-2,671.63

Finding the Fourth Proportional to 7,865.75, 11,800.45 and 2,671.63

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Solution

The fourth proportional to 7,865.75, 11,800.45 and 2,671.63 is: 4,008.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.75 : 11,800.45 = 2,671.63 : x
  2. Step 2: Convert to fraction form
    7,865.75/11,800.45 = 2,671.63/x
  3. Step 3: Cross multiply
    7,865.75x = 11,800.45 × 2,671.63
  4. Step 4: Simplify right side
    7,865.75x = 31,526,436.23
  5. Step 5: Solve for x
    x = 31,526,436.23/7,865.75
  6. Step 6: Final answer
    x = 4,008.06

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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.