Home / 12,188.21-18,282.23-3,423.14

Finding the Fourth Proportional to 12,188.21, 18,282.23 and 3,423.14

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Solution

The fourth proportional to 12,188.21, 18,282.23 and 3,423.14 is: 5,134.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188.21 : 18,282.23 = 3,423.14 : x
  2. Step 2: Convert to fraction form
    12,188.21/18,282.23 = 3,423.14/x
  3. Step 3: Cross multiply
    12,188.21x = 18,282.23 × 3,423.14
  4. Step 4: Simplify right side
    12,188.21x = 62,582,541.39
  5. Step 5: Solve for x
    x = 62,582,541.39/12,188.21
  6. Step 6: Final answer
    x = 5,134.68

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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.