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Finding the Fourth Proportional to 8,507.78, 11,746.44 and 6,514.77

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Solution

The fourth proportional to 8,507.78, 11,746.44 and 6,514.77 is: 8,994.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507.78 : 11,746.44 = 6,514.77 : x
  2. Step 2: Convert to fraction form
    8,507.78/11,746.44 = 6,514.77/x
  3. Step 3: Cross multiply
    8,507.78x = 11,746.44 × 6,514.77
  4. Step 4: Simplify right side
    8,507.78x = 76,525,354.92
  5. Step 5: Solve for x
    x = 76,525,354.92/8,507.78
  6. Step 6: Final answer
    x = 8,994.76

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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.