Home / 12,647.05-18,972.80-4,325.11

Finding the Fourth Proportional to 12,647.05, 18,972.80 and 4,325.11

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Solution

The fourth proportional to 12,647.05, 18,972.80 and 4,325.11 is: 6,488.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,647.05 : 18,972.80 = 4,325.11 : x
  2. Step 2: Convert to fraction form
    12,647.05/18,972.80 = 4,325.11/x
  3. Step 3: Cross multiply
    12,647.05x = 18,972.80 × 4,325.11
  4. Step 4: Simplify right side
    12,647.05x = 82,059,447.01
  5. Step 5: Solve for x
    x = 82,059,447.01/12,647.05
  6. Step 6: Final answer
    x = 6,488.43

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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.