Home / 12,951.23-19,408.34-7,393.05

Finding the Fourth Proportional to 12,951.23, 19,408.34 and 7,393.05

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Solution

The fourth proportional to 12,951.23, 19,408.34 and 7,393.05 is: 11,079.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,951.23 : 19,408.34 = 7,393.05 : x
  2. Step 2: Convert to fraction form
    12,951.23/19,408.34 = 7,393.05/x
  3. Step 3: Cross multiply
    12,951.23x = 19,408.34 × 7,393.05
  4. Step 4: Simplify right side
    12,951.23x = 143,486,791.07
  5. Step 5: Solve for x
    x = 143,486,791.07/12,951.23
  6. Step 6: Final answer
    x = 11,079.01

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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.