Home / 12,226.71-18,338.14-4,729.21

Finding the Fourth Proportional to 12,226.71, 18,338.14 and 4,729.21

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Solution

The fourth proportional to 12,226.71, 18,338.14 and 4,729.21 is: 7,093.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.71 : 18,338.14 = 4,729.21 : x
  2. Step 2: Convert to fraction form
    12,226.71/18,338.14 = 4,729.21/x
  3. Step 3: Cross multiply
    12,226.71x = 18,338.14 × 4,729.21
  4. Step 4: Simplify right side
    12,226.71x = 86,724,915.07
  5. Step 5: Solve for x
    x = 86,724,915.07/12,226.71
  6. Step 6: Final answer
    x = 7,093.07

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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.