Home / 12,470.24-18,689.75-6,231.99

Finding the Fourth Proportional to 12,470.24, 18,689.75 and 6,231.99

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Solution

The fourth proportional to 12,470.24, 18,689.75 and 6,231.99 is: 9,340.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470.24 : 18,689.75 = 6,231.99 : x
  2. Step 2: Convert to fraction form
    12,470.24/18,689.75 = 6,231.99/x
  3. Step 3: Cross multiply
    12,470.24x = 18,689.75 × 6,231.99
  4. Step 4: Simplify right side
    12,470.24x = 116,474,303.94
  5. Step 5: Solve for x
    x = 116,474,303.94/12,470.24
  6. Step 6: Final answer
    x = 9,340.19

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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.