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Finding the Fourth Proportional to 17,655.75, 26,482.95 and 7,122.51

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Solution

The fourth proportional to 17,655.75, 26,482.95 and 7,122.51 is: 10,683.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,655.75 : 26,482.95 = 7,122.51 : x
  2. Step 2: Convert to fraction form
    17,655.75/26,482.95 = 7,122.51/x
  3. Step 3: Cross multiply
    17,655.75x = 26,482.95 × 7,122.51
  4. Step 4: Simplify right side
    17,655.75x = 188,625,076.20
  5. Step 5: Solve for x
    x = 188,625,076.20/17,655.75
  6. Step 6: Final answer
    x = 10,683.49

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.