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Finding the Fourth Proportional to 8,486.79, 11,708.56 and 6,253.99

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Solution

The fourth proportional to 8,486.79, 11,708.56 and 6,253.99 is: 8,628.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,486.79 : 11,708.56 = 6,253.99 : x
  2. Step 2: Convert to fraction form
    8,486.79/11,708.56 = 6,253.99/x
  3. Step 3: Cross multiply
    8,486.79x = 11,708.56 × 6,253.99
  4. Step 4: Simplify right side
    8,486.79x = 73,225,243.97
  5. Step 5: Solve for x
    x = 73,225,243.97/8,486.79
  6. Step 6: Final answer
    x = 8,628.14

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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.