Home / 13,260.31-19,890.41-5,362.72

Finding the Fourth Proportional to 13,260.31, 19,890.41 and 5,362.72

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Solution

The fourth proportional to 13,260.31, 19,890.41 and 5,362.72 is: 8,044.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.31 : 19,890.41 = 5,362.72 : x
  2. Step 2: Convert to fraction form
    13,260.31/19,890.41 = 5,362.72/x
  3. Step 3: Cross multiply
    13,260.31x = 19,890.41 × 5,362.72
  4. Step 4: Simplify right side
    13,260.31x = 106,666,622.98
  5. Step 5: Solve for x
    x = 106,666,622.98/13,260.31
  6. Step 6: Final answer
    x = 8,044.05

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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.