Home / 16,786.19-25,180.70-5,099.51

Finding the Fourth Proportional to 16,786.19, 25,180.70 and 5,099.51

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Solution

The fourth proportional to 16,786.19, 25,180.70 and 5,099.51 is: 7,649.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,786.19 : 25,180.70 = 5,099.51 : x
  2. Step 2: Convert to fraction form
    16,786.19/25,180.70 = 5,099.51/x
  3. Step 3: Cross multiply
    16,786.19x = 25,180.70 × 5,099.51
  4. Step 4: Simplify right side
    16,786.19x = 128,409,231.46
  5. Step 5: Solve for x
    x = 128,409,231.46/16,786.19
  6. Step 6: Final answer
    x = 7,649.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.