Home / 19,136.10-26,405.81-10,636.86

Finding the Fourth Proportional to 19,136.10, 26,405.81 and 10,636.86

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Solution

The fourth proportional to 19,136.10, 26,405.81 and 10,636.86 is: 14,677.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,136.10 : 26,405.81 = 10,636.86 : x
  2. Step 2: Convert to fraction form
    19,136.10/26,405.81 = 10,636.86/x
  3. Step 3: Cross multiply
    19,136.10x = 26,405.81 × 10,636.86
  4. Step 4: Simplify right side
    19,136.10x = 280,874,850.97
  5. Step 5: Solve for x
    x = 280,874,850.97/19,136.10
  6. Step 6: Final answer
    x = 14,677.75

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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.