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Finding the Fourth Proportional to 9,913.79, 14,860.62 and 6,218.62

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Solution

The fourth proportional to 9,913.79, 14,860.62 and 6,218.62 is: 9,321.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,913.79 : 14,860.62 = 6,218.62 : x
  2. Step 2: Convert to fraction form
    9,913.79/14,860.62 = 6,218.62/x
  3. Step 3: Cross multiply
    9,913.79x = 14,860.62 × 6,218.62
  4. Step 4: Simplify right side
    9,913.79x = 92,412,511.59
  5. Step 5: Solve for x
    x = 92,412,511.59/9,913.79
  6. Step 6: Final answer
    x = 9,321.61

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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.