Home / 19,143.45-28,712.63-7,294.03

Finding the Fourth Proportional to 19,143.45, 28,712.63 and 7,294.03

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Solution

The fourth proportional to 19,143.45, 28,712.63 and 7,294.03 is: 10,940.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.45 : 28,712.63 = 7,294.03 : x
  2. Step 2: Convert to fraction form
    19,143.45/28,712.63 = 7,294.03/x
  3. Step 3: Cross multiply
    19,143.45x = 28,712.63 × 7,294.03
  4. Step 4: Simplify right side
    19,143.45x = 209,430,731.05
  5. Step 5: Solve for x
    x = 209,430,731.05/19,143.45
  6. Step 6: Final answer
    x = 10,940.07

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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.