Home / 12,330.28-18,501.49-5,755.51

Finding the Fourth Proportional to 12,330.28, 18,501.49 and 5,755.51

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Solution

The fourth proportional to 12,330.28, 18,501.49 and 5,755.51 is: 8,636.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,330.28 : 18,501.49 = 5,755.51 : x
  2. Step 2: Convert to fraction form
    12,330.28/18,501.49 = 5,755.51/x
  3. Step 3: Cross multiply
    12,330.28x = 18,501.49 × 5,755.51
  4. Step 4: Simplify right side
    12,330.28x = 106,485,471.65
  5. Step 5: Solve for x
    x = 106,485,471.65/12,330.28
  6. Step 6: Final answer
    x = 8,636.10

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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.