Home / 13,168.40-19,752.84-3,809.12

Finding the Fourth Proportional to 13,168.40, 19,752.84 and 3,809.12

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Solution

The fourth proportional to 13,168.40, 19,752.84 and 3,809.12 is: 5,713.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168.40 : 19,752.84 = 3,809.12 : x
  2. Step 2: Convert to fraction form
    13,168.40/19,752.84 = 3,809.12/x
  3. Step 3: Cross multiply
    13,168.40x = 19,752.84 × 3,809.12
  4. Step 4: Simplify right side
    13,168.40x = 75,240,937.90
  5. Step 5: Solve for x
    x = 75,240,937.90/13,168.40
  6. Step 6: Final answer
    x = 5,713.75

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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.