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Finding the Fourth Proportional to 8,946.37, 12,342.94 and 5,220.37

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Solution

The fourth proportional to 8,946.37, 12,342.94 and 5,220.37 is: 7,202.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,946.37 : 12,342.94 = 5,220.37 : x
  2. Step 2: Convert to fraction form
    8,946.37/12,342.94 = 5,220.37/x
  3. Step 3: Cross multiply
    8,946.37x = 12,342.94 × 5,220.37
  4. Step 4: Simplify right side
    8,946.37x = 64,434,713.69
  5. Step 5: Solve for x
    x = 64,434,713.69/8,946.37
  6. Step 6: Final answer
    x = 7,202.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.