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Finding the Third Proportional to 4,758 and 7,518

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Solution

The third proportional to 4,758 and 7,518 is: 11,879.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,758 : 7,518 = 7,518 : x
  2. Step 2: Convert to fraction form
    4,758/7,518 = 7,518/x
  3. Step 3: Cross multiply
    4,758x = 7,518 × 7,518
  4. Step 4: Simplify right side
    4,758x = 56,520,324
  5. Step 5: Solve for x
    x = 56,520,324/4,758
  6. Step 6: Final answer
    x = 11,879.01

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.