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Finding the Fourth Proportional to 12,803.64, 19,193.94 and 6,628.92

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Solution

The fourth proportional to 12,803.64, 19,193.94 and 6,628.92 is: 9,937.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,803.64 : 19,193.94 = 6,628.92 : x
  2. Step 2: Convert to fraction form
    12,803.64/19,193.94 = 6,628.92/x
  3. Step 3: Cross multiply
    12,803.64x = 19,193.94 × 6,628.92
  4. Step 4: Simplify right side
    12,803.64x = 127,235,092.74
  5. Step 5: Solve for x
    x = 127,235,092.74/12,803.64
  6. Step 6: Final answer
    x = 9,937.42

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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.