Home / 13,814.53-19,070.43-8,147.36

Finding the Fourth Proportional to 13,814.53, 19,070.43 and 8,147.36

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Solution

The fourth proportional to 13,814.53, 19,070.43 and 8,147.36 is: 11,247.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,814.53 : 19,070.43 = 8,147.36 : x
  2. Step 2: Convert to fraction form
    13,814.53/19,070.43 = 8,147.36/x
  3. Step 3: Cross multiply
    13,814.53x = 19,070.43 × 8,147.36
  4. Step 4: Simplify right side
    13,814.53x = 155,373,658.56
  5. Step 5: Solve for x
    x = 155,373,658.56/13,814.53
  6. Step 6: Final answer
    x = 11,247.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.