Home / 13,214.67-18,236.09-7,246.29

Finding the Fourth Proportional to 13,214.67, 18,236.09 and 7,246.29

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Solution

The fourth proportional to 13,214.67, 18,236.09 and 7,246.29 is: 9,999.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,214.67 : 18,236.09 = 7,246.29 : x
  2. Step 2: Convert to fraction form
    13,214.67/18,236.09 = 7,246.29/x
  3. Step 3: Cross multiply
    13,214.67x = 18,236.09 × 7,246.29
  4. Step 4: Simplify right side
    13,214.67x = 132,143,960.37
  5. Step 5: Solve for x
    x = 132,143,960.37/13,214.67
  6. Step 6: Final answer
    x = 9,999.79

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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.