Home / 12,062.21-18,072.54-9,428.69

Finding the Fourth Proportional to 12,062.21, 18,072.54 and 9,428.69

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Solution

The fourth proportional to 12,062.21, 18,072.54 and 9,428.69 is: 14,126.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,062.21 : 18,072.54 = 9,428.69 : x
  2. Step 2: Convert to fraction form
    12,062.21/18,072.54 = 9,428.69/x
  3. Step 3: Cross multiply
    12,062.21x = 18,072.54 × 9,428.69
  4. Step 4: Simplify right side
    12,062.21x = 170,400,286.81
  5. Step 5: Solve for x
    x = 170,400,286.81/12,062.21
  6. Step 6: Final answer
    x = 14,126.79

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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.