Home / 12,674.07-19,017.89-7,127.80

Finding the Fourth Proportional to 12,674.07, 19,017.89 and 7,127.80

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Solution

The fourth proportional to 12,674.07, 19,017.89 and 7,127.80 is: 10,695.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,674.07 : 19,017.89 = 7,127.80 : x
  2. Step 2: Convert to fraction form
    12,674.07/19,017.89 = 7,127.80/x
  3. Step 3: Cross multiply
    12,674.07x = 19,017.89 × 7,127.80
  4. Step 4: Simplify right side
    12,674.07x = 135,555,659.89
  5. Step 5: Solve for x
    x = 135,555,659.89/12,674.07
  6. Step 6: Final answer
    x = 10,695.51

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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.