Home / 13,327.24-18,391.74-7,358.90

Finding the Fourth Proportional to 13,327.24, 18,391.74 and 7,358.90

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Solution

The fourth proportional to 13,327.24, 18,391.74 and 7,358.90 is: 10,155.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,327.24 : 18,391.74 = 7,358.90 : x
  2. Step 2: Convert to fraction form
    13,327.24/18,391.74 = 7,358.90/x
  3. Step 3: Cross multiply
    13,327.24x = 18,391.74 × 7,358.90
  4. Step 4: Simplify right side
    13,327.24x = 135,342,975.49
  5. Step 5: Solve for x
    x = 135,342,975.49/13,327.24
  6. Step 6: Final answer
    x = 10,155.36

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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.