Home / 13,219.31-19,837.82-4,899.40

Finding the Fourth Proportional to 13,219.31, 19,837.82 and 4,899.40

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Solution

The fourth proportional to 13,219.31, 19,837.82 and 4,899.40 is: 7,352.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.31 : 19,837.82 = 4,899.40 : x
  2. Step 2: Convert to fraction form
    13,219.31/19,837.82 = 4,899.40/x
  3. Step 3: Cross multiply
    13,219.31x = 19,837.82 × 4,899.40
  4. Step 4: Simplify right side
    13,219.31x = 97,193,316.12
  5. Step 5: Solve for x
    x = 97,193,316.12/13,219.31
  6. Step 6: Final answer
    x = 7,352.37

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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.