Home / 13,292.40-18,343.60-7,324.09

Finding the Fourth Proportional to 13,292.40, 18,343.60 and 7,324.09

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Solution

The fourth proportional to 13,292.40, 18,343.60 and 7,324.09 is: 10,107.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292.40 : 18,343.60 = 7,324.09 : x
  2. Step 2: Convert to fraction form
    13,292.40/18,343.60 = 7,324.09/x
  3. Step 3: Cross multiply
    13,292.40x = 18,343.60 × 7,324.09
  4. Step 4: Simplify right side
    13,292.40x = 134,350,113.15
  5. Step 5: Solve for x
    x = 134,350,113.15/13,292.40
  6. Step 6: Final answer
    x = 10,107.29

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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.