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Finding the Fourth Proportional to 12,693.95, 17,517.63 and 7,104.95

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Solution

The fourth proportional to 12,693.95, 17,517.63 and 7,104.95 is: 9,804.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,693.95 : 17,517.63 = 7,104.95 : x
  2. Step 2: Convert to fraction form
    12,693.95/17,517.63 = 7,104.95/x
  3. Step 3: Cross multiply
    12,693.95x = 17,517.63 × 7,104.95
  4. Step 4: Simplify right side
    12,693.95x = 124,461,797.68
  5. Step 5: Solve for x
    x = 124,461,797.68/12,693.95
  6. Step 6: Final answer
    x = 9,804.82

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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.