Home / 12,239.24-18,341.69-5,209.74

Finding the Fourth Proportional to 12,239.24, 18,341.69 and 5,209.74

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Solution

The fourth proportional to 12,239.24, 18,341.69 and 5,209.74 is: 7,807.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.24 : 18,341.69 = 5,209.74 : x
  2. Step 2: Convert to fraction form
    12,239.24/18,341.69 = 5,209.74/x
  3. Step 3: Cross multiply
    12,239.24x = 18,341.69 × 5,209.74
  4. Step 4: Simplify right side
    12,239.24x = 95,555,410.01
  5. Step 5: Solve for x
    x = 95,555,410.01/12,239.24
  6. Step 6: Final answer
    x = 7,807.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.