Home / 12,434.36-18,651.20-5,038.65

Finding the Fourth Proportional to 12,434.36, 18,651.20 and 5,038.65

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Solution

The fourth proportional to 12,434.36, 18,651.20 and 5,038.65 is: 7,557.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,434.36 : 18,651.20 = 5,038.65 : x
  2. Step 2: Convert to fraction form
    12,434.36/18,651.20 = 5,038.65/x
  3. Step 3: Cross multiply
    12,434.36x = 18,651.20 × 5,038.65
  4. Step 4: Simplify right side
    12,434.36x = 93,976,843.69
  5. Step 5: Solve for x
    x = 93,976,843.69/12,434.36
  6. Step 6: Final answer
    x = 7,557.84

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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.