Home / 7,889.40-10,874.25-5,647.73

Finding the Fourth Proportional to 7,889.40, 10,874.25 and 5,647.73

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Solution

The fourth proportional to 7,889.40, 10,874.25 and 5,647.73 is: 7,784.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.40 : 10,874.25 = 5,647.73 : x
  2. Step 2: Convert to fraction form
    7,889.40/10,874.25 = 5,647.73/x
  3. Step 3: Cross multiply
    7,889.40x = 10,874.25 × 5,647.73
  4. Step 4: Simplify right side
    7,889.40x = 61,414,773.58
  5. Step 5: Solve for x
    x = 61,414,773.58/7,889.40
  6. Step 6: Final answer
    x = 7,784.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.