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Finding the Fourth Proportional to 12,483.67, 17,198.16 and 8,699.95

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Solution

The fourth proportional to 12,483.67, 17,198.16 and 8,699.95 is: 11,985.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,483.67 : 17,198.16 = 8,699.95 : x
  2. Step 2: Convert to fraction form
    12,483.67/17,198.16 = 8,699.95/x
  3. Step 3: Cross multiply
    12,483.67x = 17,198.16 × 8,699.95
  4. Step 4: Simplify right side
    12,483.67x = 149,623,132.09
  5. Step 5: Solve for x
    x = 149,623,132.09/12,483.67
  6. Step 6: Final answer
    x = 11,985.51

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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.