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Finding the Fourth Proportional to 8,670.56, 13,006.04 and 3,994.48

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Solution

The fourth proportional to 8,670.56, 13,006.04 and 3,994.48 is: 5,991.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,670.56 : 13,006.04 = 3,994.48 : x
  2. Step 2: Convert to fraction form
    8,670.56/13,006.04 = 3,994.48/x
  3. Step 3: Cross multiply
    8,670.56x = 13,006.04 × 3,994.48
  4. Step 4: Simplify right side
    8,670.56x = 51,952,362.94
  5. Step 5: Solve for x
    x = 51,952,362.94/8,670.56
  6. Step 6: Final answer
    x = 5,991.82

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1.5x scale

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.