Home / 13,181.76-19,761.12-4,968

Finding the Fourth Proportional to 13,181.76, 19,761.12 and 4,968

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Solution

The fourth proportional to 13,181.76, 19,761.12 and 4,968 is: 7,447.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181.76 : 19,761.12 = 4,968 : x
  2. Step 2: Convert to fraction form
    13,181.76/19,761.12 = 4,968/x
  3. Step 3: Cross multiply
    13,181.76x = 19,761.12 × 4,968
  4. Step 4: Simplify right side
    13,181.76x = 98,173,244.16
  5. Step 5: Solve for x
    x = 98,173,244.16/13,181.76
  6. Step 6: Final answer
    x = 7,447.66

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Why These Related Problems?

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