Home / 13,101.10-19,659.76-5,309.98

Finding the Fourth Proportional to 13,101.10, 19,659.76 and 5,309.98

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Solution

The fourth proportional to 13,101.10, 19,659.76 and 5,309.98 is: 7,968.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101.10 : 19,659.76 = 5,309.98 : x
  2. Step 2: Convert to fraction form
    13,101.10/19,659.76 = 5,309.98/x
  3. Step 3: Cross multiply
    13,101.10x = 19,659.76 × 5,309.98
  4. Step 4: Simplify right side
    13,101.10x = 104,392,932.40
  5. Step 5: Solve for x
    x = 104,392,932.40/13,101.10
  6. Step 6: Final answer
    x = 7,968.26

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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.