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Finding the Fourth Proportional to 12,763.67, 19,133.82 and 5,368.64

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Solution

The fourth proportional to 12,763.67, 19,133.82 and 5,368.64 is: 8,048.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,763.67 : 19,133.82 = 5,368.64 : x
  2. Step 2: Convert to fraction form
    12,763.67/19,133.82 = 5,368.64/x
  3. Step 3: Cross multiply
    12,763.67x = 19,133.82 × 5,368.64
  4. Step 4: Simplify right side
    12,763.67x = 102,722,639.24
  5. Step 5: Solve for x
    x = 102,722,639.24/12,763.67
  6. Step 6: Final answer
    x = 8,048.05

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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.