Home / 19,136.61-26,408.38-10,639.51

Finding the Fourth Proportional to 19,136.61, 26,408.38 and 10,639.51

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Solution

The fourth proportional to 19,136.61, 26,408.38 and 10,639.51 is: 14,682.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,136.61 : 26,408.38 = 10,639.51 : x
  2. Step 2: Convert to fraction form
    19,136.61/26,408.38 = 10,639.51/x
  3. Step 3: Cross multiply
    19,136.61x = 26,408.38 × 10,639.51
  4. Step 4: Simplify right side
    19,136.61x = 280,972,223.09
  5. Step 5: Solve for x
    x = 280,972,223.09/19,136.61
  6. Step 6: Final answer
    x = 14,682.44

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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.