Home / 13,254.10-19,876.29-3,891.72

Finding the Fourth Proportional to 13,254.10, 19,876.29 and 3,891.72

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Solution

The fourth proportional to 13,254.10, 19,876.29 and 3,891.72 is: 5,836.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,254.10 : 19,876.29 = 3,891.72 : x
  2. Step 2: Convert to fraction form
    13,254.10/19,876.29 = 3,891.72/x
  3. Step 3: Cross multiply
    13,254.10x = 19,876.29 × 3,891.72
  4. Step 4: Simplify right side
    13,254.10x = 77,352,955.32
  5. Step 5: Solve for x
    x = 77,352,955.32/13,254.10
  6. Step 6: Final answer
    x = 5,836.15

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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.