Home / 9,188.37-12,682.21-5,211.81

Finding the Fourth Proportional to 9,188.37, 12,682.21 and 5,211.81

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Solution

The fourth proportional to 9,188.37, 12,682.21 and 5,211.81 is: 7,193.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,188.37 : 12,682.21 = 5,211.81 : x
  2. Step 2: Convert to fraction form
    9,188.37/12,682.21 = 5,211.81/x
  3. Step 3: Cross multiply
    9,188.37x = 12,682.21 × 5,211.81
  4. Step 4: Simplify right side
    9,188.37x = 66,097,242.84
  5. Step 5: Solve for x
    x = 66,097,242.84/9,188.37
  6. Step 6: Final answer
    x = 7,193.58

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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.