Home / 13,277.82-18,321.59-7,309.36

Finding the Fourth Proportional to 13,277.82, 18,321.59 and 7,309.36

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Solution

The fourth proportional to 13,277.82, 18,321.59 and 7,309.36 is: 10,085.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.82 : 18,321.59 = 7,309.36 : x
  2. Step 2: Convert to fraction form
    13,277.82/18,321.59 = 7,309.36/x
  3. Step 3: Cross multiply
    13,277.82x = 18,321.59 × 7,309.36
  4. Step 4: Simplify right side
    13,277.82x = 133,919,189.79
  5. Step 5: Solve for x
    x = 133,919,189.79/13,277.82
  6. Step 6: Final answer
    x = 10,085.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.