Home / 19,136.39-26,406.83-11,969.53

Finding the Fourth Proportional to 19,136.39, 26,406.83 and 11,969.53

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Solution

The fourth proportional to 19,136.39, 26,406.83 and 11,969.53 is: 16,517.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,136.39 : 26,406.83 = 11,969.53 : x
  2. Step 2: Convert to fraction form
    19,136.39/26,406.83 = 11,969.53/x
  3. Step 3: Cross multiply
    19,136.39x = 26,406.83 × 11,969.53
  4. Step 4: Simplify right side
    19,136.39x = 316,077,307.80
  5. Step 5: Solve for x
    x = 316,077,307.80/19,136.39
  6. Step 6: Final answer
    x = 16,517.09

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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.