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Finding the Fourth Proportional to 17,151.20, 25,726.80 and 13,263.20

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Solution

The fourth proportional to 17,151.20, 25,726.80 and 13,263.20 is: 19,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,151.20 : 25,726.80 = 13,263.20 : x
  2. Step 2: Convert to fraction form
    17,151.20/25,726.80 = 13,263.20/x
  3. Step 3: Cross multiply
    17,151.20x = 25,726.80 × 13,263.20
  4. Step 4: Simplify right side
    17,151.20x = 341,219,693.76
  5. Step 5: Solve for x
    x = 341,219,693.76/17,151.20
  6. Step 6: Final answer
    x = 19,894.80

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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.