Home / 13,183.40-19,758.36-12,838.88

Finding the Fourth Proportional to 13,183.40, 19,758.36 and 12,838.88

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Solution

The fourth proportional to 13,183.40, 19,758.36 and 12,838.88 is: 19,242.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.40 : 19,758.36 = 12,838.88 : x
  2. Step 2: Convert to fraction form
    13,183.40/19,758.36 = 12,838.88/x
  3. Step 3: Cross multiply
    13,183.40x = 19,758.36 × 12,838.88
  4. Step 4: Simplify right side
    13,183.40x = 253,675,213.04
  5. Step 5: Solve for x
    x = 253,675,213.04/13,183.40
  6. Step 6: Final answer
    x = 19,242.02

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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.