Home / 13,011.12-19,516.68-3,150.36

Finding the Fourth Proportional to 13,011.12, 19,516.68 and 3,150.36

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Solution

The fourth proportional to 13,011.12, 19,516.68 and 3,150.36 is: 4,725.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,011.12 : 19,516.68 = 3,150.36 : x
  2. Step 2: Convert to fraction form
    13,011.12/19,516.68 = 3,150.36/x
  3. Step 3: Cross multiply
    13,011.12x = 19,516.68 × 3,150.36
  4. Step 4: Simplify right side
    13,011.12x = 61,484,568.00
  5. Step 5: Solve for x
    x = 61,484,568.00/13,011.12
  6. Step 6: Final answer
    x = 4,725.54

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Double scale
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Similar ratio
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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.