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Finding the Fourth Proportional to 8,434, 11,639.48 and 4,708.08

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Solution

The fourth proportional to 8,434, 11,639.48 and 4,708.08 is: 6,497.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,434 : 11,639.48 = 4,708.08 : x
  2. Step 2: Convert to fraction form
    8,434/11,639.48 = 4,708.08/x
  3. Step 3: Cross multiply
    8,434x = 11,639.48 × 4,708.08
  4. Step 4: Simplify right side
    8,434x = 54,799,603.00
  5. Step 5: Solve for x
    x = 54,799,603.00/8,434
  6. Step 6: Final answer
    x = 6,497.46

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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.