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Finding the Fourth Proportional to 8,347.69, 12,527.88 and 3,087.68

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Solution

The fourth proportional to 8,347.69, 12,527.88 and 3,087.68 is: 4,633.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,347.69 : 12,527.88 = 3,087.68 : x
  2. Step 2: Convert to fraction form
    8,347.69/12,527.88 = 3,087.68/x
  3. Step 3: Cross multiply
    8,347.69x = 12,527.88 × 3,087.68
  4. Step 4: Simplify right side
    8,347.69x = 38,682,056.95
  5. Step 5: Solve for x
    x = 38,682,056.95/8,347.69
  6. Step 6: Final answer
    x = 4,633.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.