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Finding the Fourth Proportional to 19,242.98, 28,868.78 and 6,763.86

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Solution

The fourth proportional to 19,242.98, 28,868.78 and 6,763.86 is: 10,147.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,242.98 : 28,868.78 = 6,763.86 : x
  2. Step 2: Convert to fraction form
    19,242.98/28,868.78 = 6,763.86/x
  3. Step 3: Cross multiply
    19,242.98x = 28,868.78 × 6,763.86
  4. Step 4: Simplify right side
    19,242.98x = 195,264,403.20
  5. Step 5: Solve for x
    x = 195,264,403.20/19,242.98
  6. Step 6: Final answer
    x = 10,147.31

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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.