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Finding the Fourth Proportional to 12,969.65, 19,428.86 and 6,733.73

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Solution

The fourth proportional to 12,969.65, 19,428.86 and 6,733.73 is: 10,087.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,969.65 : 19,428.86 = 6,733.73 : x
  2. Step 2: Convert to fraction form
    12,969.65/19,428.86 = 6,733.73/x
  3. Step 3: Cross multiply
    12,969.65x = 19,428.86 × 6,733.73
  4. Step 4: Simplify right side
    12,969.65x = 130,828,762.85
  5. Step 5: Solve for x
    x = 130,828,762.85/12,969.65
  6. Step 6: Final answer
    x = 10,087.30

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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.