Home / 19,065.68-28,583.16-8,129.36

Finding the Fourth Proportional to 19,065.68, 28,583.16 and 8,129.36

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Solution

The fourth proportional to 19,065.68, 28,583.16 and 8,129.36 is: 12,187.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,065.68 : 28,583.16 = 8,129.36 : x
  2. Step 2: Convert to fraction form
    19,065.68/28,583.16 = 8,129.36/x
  3. Step 3: Cross multiply
    19,065.68x = 28,583.16 × 8,129.36
  4. Step 4: Simplify right side
    19,065.68x = 232,362,797.58
  5. Step 5: Solve for x
    x = 232,362,797.58/19,065.68
  6. Step 6: Final answer
    x = 12,187.49

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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.