Home / 13,120.23-19,674.54-3,758.12

Finding the Fourth Proportional to 13,120.23, 19,674.54 and 3,758.12

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Solution

The fourth proportional to 13,120.23, 19,674.54 and 3,758.12 is: 5,635.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120.23 : 19,674.54 = 3,758.12 : x
  2. Step 2: Convert to fraction form
    13,120.23/19,674.54 = 3,758.12/x
  3. Step 3: Cross multiply
    13,120.23x = 19,674.54 × 3,758.12
  4. Step 4: Simplify right side
    13,120.23x = 73,939,282.26
  5. Step 5: Solve for x
    x = 73,939,282.26/13,120.23
  6. Step 6: Final answer
    x = 5,635.52

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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.