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Finding the Fourth Proportional to 13,080.95, 19,618.59 and 4,761.17

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Solution

The fourth proportional to 13,080.95, 19,618.59 and 4,761.17 is: 7,140.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.95 : 19,618.59 = 4,761.17 : x
  2. Step 2: Convert to fraction form
    13,080.95/19,618.59 = 4,761.17/x
  3. Step 3: Cross multiply
    13,080.95x = 19,618.59 × 4,761.17
  4. Step 4: Simplify right side
    13,080.95x = 93,407,442.15
  5. Step 5: Solve for x
    x = 93,407,442.15/13,080.95
  6. Step 6: Final answer
    x = 7,140.72

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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.