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Finding the Fourth Proportional to 6,418.96, 9,644.68 and 6,159.76

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Solution

The fourth proportional to 6,418.96, 9,644.68 and 6,159.76 is: 9,255.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.96 : 9,644.68 = 6,159.76 : x
  2. Step 2: Convert to fraction form
    6,418.96/9,644.68 = 6,159.76/x
  3. Step 3: Cross multiply
    6,418.96x = 9,644.68 × 6,159.76
  4. Step 4: Simplify right side
    6,418.96x = 59,408,914.08
  5. Step 5: Solve for x
    x = 59,408,914.08/6,418.96
  6. Step 6: Final answer
    x = 9,255.22

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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.