Home / 8,127.21-11,215.89-4,590.42

Finding the Fourth Proportional to 8,127.21, 11,215.89 and 4,590.42

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Solution

The fourth proportional to 8,127.21, 11,215.89 and 4,590.42 is: 6,334.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.21 : 11,215.89 = 4,590.42 : x
  2. Step 2: Convert to fraction form
    8,127.21/11,215.89 = 4,590.42/x
  3. Step 3: Cross multiply
    8,127.21x = 11,215.89 × 4,590.42
  4. Step 4: Simplify right side
    8,127.21x = 51,485,645.77
  5. Step 5: Solve for x
    x = 51,485,645.77/8,127.21
  6. Step 6: Final answer
    x = 6,334.97

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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.