Home / 13,313.15-19,969.72-3,452.21

Finding the Fourth Proportional to 13,313.15, 19,969.72 and 3,452.21

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Solution

The fourth proportional to 13,313.15, 19,969.72 and 3,452.21 is: 5,178.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.15 : 19,969.72 = 3,452.21 : x
  2. Step 2: Convert to fraction form
    13,313.15/19,969.72 = 3,452.21/x
  3. Step 3: Cross multiply
    13,313.15x = 19,969.72 × 3,452.21
  4. Step 4: Simplify right side
    13,313.15x = 68,939,667.08
  5. Step 5: Solve for x
    x = 68,939,667.08/13,313.15
  6. Step 6: Final answer
    x = 5,178.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.