Home / 12,983.44-19,465.56-5,186.32

Finding the Fourth Proportional to 12,983.44, 19,465.56 and 5,186.32

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Solution

The fourth proportional to 12,983.44, 19,465.56 and 5,186.32 is: 7,775.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,983.44 : 19,465.56 = 5,186.32 : x
  2. Step 2: Convert to fraction form
    12,983.44/19,465.56 = 5,186.32/x
  3. Step 3: Cross multiply
    12,983.44x = 19,465.56 × 5,186.32
  4. Step 4: Simplify right side
    12,983.44x = 100,954,623.14
  5. Step 5: Solve for x
    x = 100,954,623.14/12,983.44
  6. Step 6: Final answer
    x = 7,775.65

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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.