Home / 14,136.26-19,491.64-13,278.06

Finding the Fourth Proportional to 14,136.26, 19,491.64 and 13,278.06

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Solution

The fourth proportional to 14,136.26, 19,491.64 and 13,278.06 is: 18,308.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,136.26 : 19,491.64 = 13,278.06 : x
  2. Step 2: Convert to fraction form
    14,136.26/19,491.64 = 13,278.06/x
  3. Step 3: Cross multiply
    14,136.26x = 19,491.64 × 13,278.06
  4. Step 4: Simplify right side
    14,136.26x = 258,811,132.22
  5. Step 5: Solve for x
    x = 258,811,132.22/14,136.26
  6. Step 6: Final answer
    x = 18,308.32

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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.