Home / 13,302.45-18,361.22-9,324.54

Finding the Fourth Proportional to 13,302.45, 18,361.22 and 9,324.54

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Solution

The fourth proportional to 13,302.45, 18,361.22 and 9,324.54 is: 12,870.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,302.45 : 18,361.22 = 9,324.54 : x
  2. Step 2: Convert to fraction form
    13,302.45/18,361.22 = 9,324.54/x
  3. Step 3: Cross multiply
    13,302.45x = 18,361.22 × 9,324.54
  4. Step 4: Simplify right side
    13,302.45x = 171,209,883.72
  5. Step 5: Solve for x
    x = 171,209,883.72/13,302.45
  6. Step 6: Final answer
    x = 12,870.55

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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.