Home / 12,954.39-19,431.59-5,168.67

Finding the Fourth Proportional to 12,954.39, 19,431.59 and 5,168.67

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Solution

The fourth proportional to 12,954.39, 19,431.59 and 5,168.67 is: 7,753.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,954.39 : 19,431.59 = 5,168.67 : x
  2. Step 2: Convert to fraction form
    12,954.39/19,431.59 = 5,168.67/x
  3. Step 3: Cross multiply
    12,954.39x = 19,431.59 × 5,168.67
  4. Step 4: Simplify right side
    12,954.39x = 100,435,353.28
  5. Step 5: Solve for x
    x = 100,435,353.28/12,954.39
  6. Step 6: Final answer
    x = 7,753.00

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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.