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Finding the Fourth Proportional to 8,340.91, 11,509.34 and 4,803.44

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Solution

The fourth proportional to 8,340.91, 11,509.34 and 4,803.44 is: 6,628.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.91 : 11,509.34 = 4,803.44 : x
  2. Step 2: Convert to fraction form
    8,340.91/11,509.34 = 4,803.44/x
  3. Step 3: Cross multiply
    8,340.91x = 11,509.34 × 4,803.44
  4. Step 4: Simplify right side
    8,340.91x = 55,284,369.59
  5. Step 5: Solve for x
    x = 55,284,369.59/8,340.91
  6. Step 6: Final answer
    x = 6,628.10

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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.