Home / 12,989.26-19,492.52-4,781.26

Finding the Fourth Proportional to 12,989.26, 19,492.52 and 4,781.26

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Solution

The fourth proportional to 12,989.26, 19,492.52 and 4,781.26 is: 7,175.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,989.26 : 19,492.52 = 4,781.26 : x
  2. Step 2: Convert to fraction form
    12,989.26/19,492.52 = 4,781.26/x
  3. Step 3: Cross multiply
    12,989.26x = 19,492.52 × 4,781.26
  4. Step 4: Simplify right side
    12,989.26x = 93,198,806.18
  5. Step 5: Solve for x
    x = 93,198,806.18/12,989.26
  6. Step 6: Final answer
    x = 7,175.07

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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.