Home / 19,649.59-27,115.63-11,151.54

Finding the Fourth Proportional to 19,649.59, 27,115.63 and 11,151.54

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Solution

The fourth proportional to 19,649.59, 27,115.63 and 11,151.54 is: 15,388.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,649.59 : 27,115.63 = 11,151.54 : x
  2. Step 2: Convert to fraction form
    19,649.59/27,115.63 = 11,151.54/x
  3. Step 3: Cross multiply
    19,649.59x = 27,115.63 × 11,151.54
  4. Step 4: Simplify right side
    19,649.59x = 302,381,004.69
  5. Step 5: Solve for x
    x = 302,381,004.69/19,649.59
  6. Step 6: Final answer
    x = 15,388.67

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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.