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Finding the Fourth Proportional to 8,846.80, 12,208.56 and 5,310

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Solution

The fourth proportional to 8,846.80, 12,208.56 and 5,310 is: 7,327.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,846.80 : 12,208.56 = 5,310 : x
  2. Step 2: Convert to fraction form
    8,846.80/12,208.56 = 5,310/x
  3. Step 3: Cross multiply
    8,846.80x = 12,208.56 × 5,310
  4. Step 4: Simplify right side
    8,846.80x = 64,827,453.60
  5. Step 5: Solve for x
    x = 64,827,453.60/8,846.80
  6. Step 6: Final answer
    x = 7,327.79

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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.