Home / 19,140.82-28,706.04-12,110.26

Finding the Fourth Proportional to 19,140.82, 28,706.04 and 12,110.26

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Solution

The fourth proportional to 19,140.82, 28,706.04 and 12,110.26 is: 18,162.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140.82 : 28,706.04 = 12,110.26 : x
  2. Step 2: Convert to fraction form
    19,140.82/28,706.04 = 12,110.26/x
  3. Step 3: Cross multiply
    19,140.82x = 28,706.04 × 12,110.26
  4. Step 4: Simplify right side
    19,140.82x = 347,637,607.97
  5. Step 5: Solve for x
    x = 347,637,607.97/19,140.82
  6. Step 6: Final answer
    x = 18,162.11

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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.