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Finding the Fourth Proportional to 8,357.38, 12,527.63 and 5,239.58

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Solution

The fourth proportional to 8,357.38, 12,527.63 and 5,239.58 is: 7,854.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,357.38 : 12,527.63 = 5,239.58 : x
  2. Step 2: Convert to fraction form
    8,357.38/12,527.63 = 5,239.58/x
  3. Step 3: Cross multiply
    8,357.38x = 12,527.63 × 5,239.58
  4. Step 4: Simplify right side
    8,357.38x = 65,639,450.41
  5. Step 5: Solve for x
    x = 65,639,450.41/8,357.38
  6. Step 6: Final answer
    x = 7,854.07

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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.