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Finding the Fourth Proportional to 12,439.06, 17,163 and 9,083.68

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Solution

The fourth proportional to 12,439.06, 17,163 and 9,083.68 is: 12,533.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.06 : 17,163 = 9,083.68 : x
  2. Step 2: Convert to fraction form
    12,439.06/17,163 = 9,083.68/x
  3. Step 3: Cross multiply
    12,439.06x = 17,163 × 9,083.68
  4. Step 4: Simplify right side
    12,439.06x = 155,903,199.84
  5. Step 5: Solve for x
    x = 155,903,199.84/12,439.06
  6. Step 6: Final answer
    x = 12,533.36

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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.