Home / 12,983.12-19,460.64-5,183.36

Finding the Fourth Proportional to 12,983.12, 19,460.64 and 5,183.36

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Solution

The fourth proportional to 12,983.12, 19,460.64 and 5,183.36 is: 7,769.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,983.12 : 19,460.64 = 5,183.36 : x
  2. Step 2: Convert to fraction form
    12,983.12/19,460.64 = 5,183.36/x
  3. Step 3: Cross multiply
    12,983.12x = 19,460.64 × 5,183.36
  4. Step 4: Simplify right side
    12,983.12x = 100,871,502.95
  5. Step 5: Solve for x
    x = 100,871,502.95/12,983.12
  6. Step 6: Final answer
    x = 7,769.43

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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.