Home / 12,705.12-19,057.44-3,470.88

Finding the Fourth Proportional to 12,705.12, 19,057.44 and 3,470.88

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Solution

The fourth proportional to 12,705.12, 19,057.44 and 3,470.88 is: 5,206.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,705.12 : 19,057.44 = 3,470.88 : x
  2. Step 2: Convert to fraction form
    12,705.12/19,057.44 = 3,470.88/x
  3. Step 3: Cross multiply
    12,705.12x = 19,057.44 × 3,470.88
  4. Step 4: Simplify right side
    12,705.12x = 66,146,087.35
  5. Step 5: Solve for x
    x = 66,146,087.35/12,705.12
  6. Step 6: Final answer
    x = 5,206.25

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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.