Home / 13,102.52-19,653.90-5,309.50

Finding the Fourth Proportional to 13,102.52, 19,653.90 and 5,309.50

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Solution

The fourth proportional to 13,102.52, 19,653.90 and 5,309.50 is: 7,964.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,102.52 : 19,653.90 = 5,309.50 : x
  2. Step 2: Convert to fraction form
    13,102.52/19,653.90 = 5,309.50/x
  3. Step 3: Cross multiply
    13,102.52x = 19,653.90 × 5,309.50
  4. Step 4: Simplify right side
    13,102.52x = 104,352,382.05
  5. Step 5: Solve for x
    x = 104,352,382.05/13,102.52
  6. Step 6: Final answer
    x = 7,964.30

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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.