Home / 8,172.29-12,258.44-5,248.60

Finding the Fourth Proportional to 8,172.29, 12,258.44 and 5,248.60

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Solution

The fourth proportional to 8,172.29, 12,258.44 and 5,248.60 is: 7,872.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.29 : 12,258.44 = 5,248.60 : x
  2. Step 2: Convert to fraction form
    8,172.29/12,258.44 = 5,248.60/x
  3. Step 3: Cross multiply
    8,172.29x = 12,258.44 × 5,248.60
  4. Step 4: Simplify right side
    8,172.29x = 64,339,610.98
  5. Step 5: Solve for x
    x = 64,339,610.98/8,172.29
  6. Step 6: Final answer
    x = 7,872.90

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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.