Home / 13,361.99-18,439.58-7,394.07

Finding the Fourth Proportional to 13,361.99, 18,439.58 and 7,394.07

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Solution

The fourth proportional to 13,361.99, 18,439.58 and 7,394.07 is: 10,203.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361.99 : 18,439.58 = 7,394.07 : x
  2. Step 2: Convert to fraction form
    13,361.99/18,439.58 = 7,394.07/x
  3. Step 3: Cross multiply
    13,361.99x = 18,439.58 × 7,394.07
  4. Step 4: Simplify right side
    13,361.99x = 136,343,563.78
  5. Step 5: Solve for x
    x = 136,343,563.78/13,361.99
  6. Step 6: Final answer
    x = 10,203.83

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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.