Home / 12,775.14-19,165.58-3,891.26

Finding the Fourth Proportional to 12,775.14, 19,165.58 and 3,891.26

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Solution

The fourth proportional to 12,775.14, 19,165.58 and 3,891.26 is: 5,837.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775.14 : 19,165.58 = 3,891.26 : x
  2. Step 2: Convert to fraction form
    12,775.14/19,165.58 = 3,891.26/x
  3. Step 3: Cross multiply
    12,775.14x = 19,165.58 × 3,891.26
  4. Step 4: Simplify right side
    12,775.14x = 74,578,254.83
  5. Step 5: Solve for x
    x = 74,578,254.83/12,775.14
  6. Step 6: Final answer
    x = 5,837.76

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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.