Home / 19,198.18-26,491.63-11,543.68

Finding the Fourth Proportional to 19,198.18, 26,491.63 and 11,543.68

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Solution

The fourth proportional to 19,198.18, 26,491.63 and 11,543.68 is: 15,929.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,198.18 : 26,491.63 = 11,543.68 : x
  2. Step 2: Convert to fraction form
    19,198.18/26,491.63 = 11,543.68/x
  3. Step 3: Cross multiply
    19,198.18x = 26,491.63 × 11,543.68
  4. Step 4: Simplify right side
    19,198.18x = 305,810,738.08
  5. Step 5: Solve for x
    x = 305,810,738.08/19,198.18
  6. Step 6: Final answer
    x = 15,929.16

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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.