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Finding the Fourth Proportional to 12,325.62, 17,014.95 and 7,855.50

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Solution

The fourth proportional to 12,325.62, 17,014.95 and 7,855.50 is: 10,844.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,325.62 : 17,014.95 = 7,855.50 : x
  2. Step 2: Convert to fraction form
    12,325.62/17,014.95 = 7,855.50/x
  3. Step 3: Cross multiply
    12,325.62x = 17,014.95 × 7,855.50
  4. Step 4: Simplify right side
    12,325.62x = 133,660,939.73
  5. Step 5: Solve for x
    x = 133,660,939.73/12,325.62
  6. Step 6: Final answer
    x = 10,844.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.