Home / 12,682.46-19,027.20-5,290.40

Finding the Fourth Proportional to 12,682.46, 19,027.20 and 5,290.40

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Solution

The fourth proportional to 12,682.46, 19,027.20 and 5,290.40 is: 7,937.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,682.46 : 19,027.20 = 5,290.40 : x
  2. Step 2: Convert to fraction form
    12,682.46/19,027.20 = 5,290.40/x
  3. Step 3: Cross multiply
    12,682.46x = 19,027.20 × 5,290.40
  4. Step 4: Simplify right side
    12,682.46x = 100,661,498.88
  5. Step 5: Solve for x
    x = 100,661,498.88/12,682.46
  6. Step 6: Final answer
    x = 7,937.06

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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.