Home / 12,492.29-18,739.07-4,171.97

Finding the Fourth Proportional to 12,492.29, 18,739.07 and 4,171.97

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Solution

The fourth proportional to 12,492.29, 18,739.07 and 4,171.97 is: 6,258.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492.29 : 18,739.07 = 4,171.97 : x
  2. Step 2: Convert to fraction form
    12,492.29/18,739.07 = 4,171.97/x
  3. Step 3: Cross multiply
    12,492.29x = 18,739.07 × 4,171.97
  4. Step 4: Simplify right side
    12,492.29x = 78,178,837.87
  5. Step 5: Solve for x
    x = 78,178,837.87/12,492.29
  6. Step 6: Final answer
    x = 6,258.17

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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.