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Finding the Fourth Proportional to 7,763.90, 10,714.10 and 4,227.10

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Solution

The fourth proportional to 7,763.90, 10,714.10 and 4,227.10 is: 5,833.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,763.90 : 10,714.10 = 4,227.10 : x
  2. Step 2: Convert to fraction form
    7,763.90/10,714.10 = 4,227.10/x
  3. Step 3: Cross multiply
    7,763.90x = 10,714.10 × 4,227.10
  4. Step 4: Simplify right side
    7,763.90x = 45,289,524.19
  5. Step 5: Solve for x
    x = 45,289,524.19/7,763.90
  6. Step 6: Final answer
    x = 5,833.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.