Home / 13,238.66-19,860.21-4,351.61

Finding the Fourth Proportional to 13,238.66, 19,860.21 and 4,351.61

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Solution

The fourth proportional to 13,238.66, 19,860.21 and 4,351.61 is: 6,528.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.66 : 19,860.21 = 4,351.61 : x
  2. Step 2: Convert to fraction form
    13,238.66/19,860.21 = 4,351.61/x
  3. Step 3: Cross multiply
    13,238.66x = 19,860.21 × 4,351.61
  4. Step 4: Simplify right side
    13,238.66x = 86,423,888.44
  5. Step 5: Solve for x
    x = 86,423,888.44/13,238.66
  6. Step 6: Final answer
    x = 6,528.14

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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.