Home / 9,319.44-12,860.82-5,340.36

Finding the Fourth Proportional to 9,319.44, 12,860.82 and 5,340.36

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Solution

The fourth proportional to 9,319.44, 12,860.82 and 5,340.36 is: 7,369.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.44 : 12,860.82 = 5,340.36 : x
  2. Step 2: Convert to fraction form
    9,319.44/12,860.82 = 5,340.36/x
  3. Step 3: Cross multiply
    9,319.44x = 12,860.82 × 5,340.36
  4. Step 4: Simplify right side
    9,319.44x = 68,681,408.70
  5. Step 5: Solve for x
    x = 68,681,408.70/9,319.44
  6. Step 6: Final answer
    x = 7,369.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.