Home / 12,618.48-18,935.28-5,223.04

Finding the Fourth Proportional to 12,618.48, 18,935.28 and 5,223.04

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Solution

The fourth proportional to 12,618.48, 18,935.28 and 5,223.04 is: 7,837.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618.48 : 18,935.28 = 5,223.04 : x
  2. Step 2: Convert to fraction form
    12,618.48/18,935.28 = 5,223.04/x
  3. Step 3: Cross multiply
    12,618.48x = 18,935.28 × 5,223.04
  4. Step 4: Simplify right side
    12,618.48x = 98,899,724.85
  5. Step 5: Solve for x
    x = 98,899,724.85/12,618.48
  6. Step 6: Final answer
    x = 7,837.69

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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.