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Finding the Fourth Proportional to 9,613.66, 14,408.07 and 4,929.79

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Solution

The fourth proportional to 9,613.66, 14,408.07 and 4,929.79 is: 7,388.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,613.66 : 14,408.07 = 4,929.79 : x
  2. Step 2: Convert to fraction form
    9,613.66/14,408.07 = 4,929.79/x
  3. Step 3: Cross multiply
    9,613.66x = 14,408.07 × 4,929.79
  4. Step 4: Simplify right side
    9,613.66x = 71,028,759.41
  5. Step 5: Solve for x
    x = 71,028,759.41/9,613.66
  6. Step 6: Final answer
    x = 7,388.32

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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.