Home / 8,082.02-12,135.79-4,809.72

Finding the Fourth Proportional to 8,082.02, 12,135.79 and 4,809.72

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Solution

The fourth proportional to 8,082.02, 12,135.79 and 4,809.72 is: 7,222.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,082.02 : 12,135.79 = 4,809.72 : x
  2. Step 2: Convert to fraction form
    8,082.02/12,135.79 = 4,809.72/x
  3. Step 3: Cross multiply
    8,082.02x = 12,135.79 × 4,809.72
  4. Step 4: Simplify right side
    8,082.02x = 58,369,751.88
  5. Step 5: Solve for x
    x = 58,369,751.88/8,082.02
  6. Step 6: Final answer
    x = 7,222.17

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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.