Home / 12,705.20-19,055.48-3,471.12

Finding the Fourth Proportional to 12,705.20, 19,055.48 and 3,471.12

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Solution

The fourth proportional to 12,705.20, 19,055.48 and 3,471.12 is: 5,206.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,705.20 : 19,055.48 = 3,471.12 : x
  2. Step 2: Convert to fraction form
    12,705.20/19,055.48 = 3,471.12/x
  3. Step 3: Cross multiply
    12,705.20x = 19,055.48 × 3,471.12
  4. Step 4: Simplify right side
    12,705.20x = 66,143,857.74
  5. Step 5: Solve for x
    x = 66,143,857.74/12,705.20
  6. Step 6: Final answer
    x = 5,206.05

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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.