Home / 12,882.06-19,313.37-5,480.28

Finding the Fourth Proportional to 12,882.06, 19,313.37 and 5,480.28

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Solution

The fourth proportional to 12,882.06, 19,313.37 and 5,480.28 is: 8,216.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,882.06 : 19,313.37 = 5,480.28 : x
  2. Step 2: Convert to fraction form
    12,882.06/19,313.37 = 5,480.28/x
  3. Step 3: Cross multiply
    12,882.06x = 19,313.37 × 5,480.28
  4. Step 4: Simplify right side
    12,882.06x = 105,842,675.34
  5. Step 5: Solve for x
    x = 105,842,675.34/12,882.06
  6. Step 6: Final answer
    x = 8,216.28

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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.