Home / 12,134.75-18,206.48-4,744.51

Finding the Fourth Proportional to 12,134.75, 18,206.48 and 4,744.51

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Solution

The fourth proportional to 12,134.75, 18,206.48 and 4,744.51 is: 7,118.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,134.75 : 18,206.48 = 4,744.51 : x
  2. Step 2: Convert to fraction form
    12,134.75/18,206.48 = 4,744.51/x
  3. Step 3: Cross multiply
    12,134.75x = 18,206.48 × 4,744.51
  4. Step 4: Simplify right side
    12,134.75x = 86,380,802.70
  5. Step 5: Solve for x
    x = 86,380,802.70/12,134.75
  6. Step 6: Final answer
    x = 7,118.47

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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.