Home / 9,186.06-12,679.62-5,408.92

Finding the Fourth Proportional to 9,186.06, 12,679.62 and 5,408.92

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Solution

The fourth proportional to 9,186.06, 12,679.62 and 5,408.92 is: 7,465.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,186.06 : 12,679.62 = 5,408.92 : x
  2. Step 2: Convert to fraction form
    9,186.06/12,679.62 = 5,408.92/x
  3. Step 3: Cross multiply
    9,186.06x = 12,679.62 × 5,408.92
  4. Step 4: Simplify right side
    9,186.06x = 68,583,050.21
  5. Step 5: Solve for x
    x = 68,583,050.21/9,186.06
  6. Step 6: Final answer
    x = 7,465.99

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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.