Home / 13,361.08-18,438.58-7,393.17

Finding the Fourth Proportional to 13,361.08, 18,438.58 and 7,393.17

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Solution

The fourth proportional to 13,361.08, 18,438.58 and 7,393.17 is: 10,202.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361.08 : 18,438.58 = 7,393.17 : x
  2. Step 2: Convert to fraction form
    13,361.08/18,438.58 = 7,393.17/x
  3. Step 3: Cross multiply
    13,361.08x = 18,438.58 × 7,393.17
  4. Step 4: Simplify right side
    13,361.08x = 136,319,556.50
  5. Step 5: Solve for x
    x = 136,319,556.50/13,361.08
  6. Step 6: Final answer
    x = 10,202.73

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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.