Home / 13,361.06-18,438.18-7,392.62

Finding the Fourth Proportional to 13,361.06, 18,438.18 and 7,392.62

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Solution

The fourth proportional to 13,361.06, 18,438.18 and 7,392.62 is: 10,201.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361.06 : 18,438.18 = 7,392.62 : x
  2. Step 2: Convert to fraction form
    13,361.06/18,438.18 = 7,392.62/x
  3. Step 3: Cross multiply
    13,361.06x = 18,438.18 × 7,392.62
  4. Step 4: Simplify right side
    13,361.06x = 136,306,458.23
  5. Step 5: Solve for x
    x = 136,306,458.23/13,361.06
  6. Step 6: Final answer
    x = 10,201.77

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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.