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Finding the Fourth Proportional to 6,388.06, 8,813.02 and 4,713.49

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Solution

The fourth proportional to 6,388.06, 8,813.02 and 4,713.49 is: 6,502.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,388.06 : 8,813.02 = 4,713.49 : x
  2. Step 2: Convert to fraction form
    6,388.06/8,813.02 = 4,713.49/x
  3. Step 3: Cross multiply
    6,388.06x = 8,813.02 × 4,713.49
  4. Step 4: Simplify right side
    6,388.06x = 41,540,081.64
  5. Step 5: Solve for x
    x = 41,540,081.64/6,388.06
  6. Step 6: Final answer
    x = 6,502.77

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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.