Home / 13,136.63-19,704.62-3,776.67

Finding the Fourth Proportional to 13,136.63, 19,704.62 and 3,776.67

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Solution

The fourth proportional to 13,136.63, 19,704.62 and 3,776.67 is: 5,664.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,136.63 : 19,704.62 = 3,776.67 : x
  2. Step 2: Convert to fraction form
    13,136.63/19,704.62 = 3,776.67/x
  3. Step 3: Cross multiply
    13,136.63x = 19,704.62 × 3,776.67
  4. Step 4: Simplify right side
    13,136.63x = 74,417,828.33
  5. Step 5: Solve for x
    x = 74,417,828.33/13,136.63
  6. Step 6: Final answer
    x = 5,664.91

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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.