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Finding the Fourth Proportional to 12,610.62, 18,979.31 and 9,506.70

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Solution

The fourth proportional to 12,610.62, 18,979.31 and 9,506.70 is: 14,307.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610.62 : 18,979.31 = 9,506.70 : x
  2. Step 2: Convert to fraction form
    12,610.62/18,979.31 = 9,506.70/x
  3. Step 3: Cross multiply
    12,610.62x = 18,979.31 × 9,506.70
  4. Step 4: Simplify right side
    12,610.62x = 180,430,558.84
  5. Step 5: Solve for x
    x = 180,430,558.84/12,610.62
  6. Step 6: Final answer
    x = 14,307.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.