Home / 12,351.16-18,528.78-4,028.76

Finding the Fourth Proportional to 12,351.16, 18,528.78 and 4,028.76

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Solution

The fourth proportional to 12,351.16, 18,528.78 and 4,028.76 is: 6,043.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,351.16 : 18,528.78 = 4,028.76 : x
  2. Step 2: Convert to fraction form
    12,351.16/18,528.78 = 4,028.76/x
  3. Step 3: Cross multiply
    12,351.16x = 18,528.78 × 4,028.76
  4. Step 4: Simplify right side
    12,351.16x = 74,648,007.71
  5. Step 5: Solve for x
    x = 74,648,007.71/12,351.16
  6. Step 6: Final answer
    x = 6,043.81

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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.