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Finding the Fourth Proportional to 12,753.90, 17,599.47 and 7,975.99

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Solution

The fourth proportional to 12,753.90, 17,599.47 and 7,975.99 is: 11,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,753.90 : 17,599.47 = 7,975.99 : x
  2. Step 2: Convert to fraction form
    12,753.90/17,599.47 = 7,975.99/x
  3. Step 3: Cross multiply
    12,753.90x = 17,599.47 × 7,975.99
  4. Step 4: Simplify right side
    12,753.90x = 140,373,196.73
  5. Step 5: Solve for x
    x = 140,373,196.73/12,753.90
  6. Step 6: Final answer
    x = 11,006.30

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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.