Home / 12,620.06-18,941.81-6,384.48

Finding the Fourth Proportional to 12,620.06, 18,941.81 and 6,384.48

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Solution

The fourth proportional to 12,620.06, 18,941.81 and 6,384.48 is: 9,582.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,620.06 : 18,941.81 = 6,384.48 : x
  2. Step 2: Convert to fraction form
    12,620.06/18,941.81 = 6,384.48/x
  3. Step 3: Cross multiply
    12,620.06x = 18,941.81 × 6,384.48
  4. Step 4: Simplify right side
    12,620.06x = 120,933,607.11
  5. Step 5: Solve for x
    x = 120,933,607.11/12,620.06
  6. Step 6: Final answer
    x = 9,582.65

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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.