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Finding the Fourth Proportional to 8,994.30, 13,491.45 and 2,838.30

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Solution

The fourth proportional to 8,994.30, 13,491.45 and 2,838.30 is: 4,257.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,994.30 : 13,491.45 = 2,838.30 : x
  2. Step 2: Convert to fraction form
    8,994.30/13,491.45 = 2,838.30/x
  3. Step 3: Cross multiply
    8,994.30x = 13,491.45 × 2,838.30
  4. Step 4: Simplify right side
    8,994.30x = 38,292,782.54
  5. Step 5: Solve for x
    x = 38,292,782.54/8,994.30
  6. Step 6: Final answer
    x = 4,257.45

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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.