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Finding the Fourth Proportional to 11,865.71, 17,804.91 and 7,704.74

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Solution

The fourth proportional to 11,865.71, 17,804.91 and 7,704.74 is: 11,561.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,865.71 : 17,804.91 = 7,704.74 : x
  2. Step 2: Convert to fraction form
    11,865.71/17,804.91 = 7,704.74/x
  3. Step 3: Cross multiply
    11,865.71x = 17,804.91 × 7,704.74
  4. Step 4: Simplify right side
    11,865.71x = 137,182,202.27
  5. Step 5: Solve for x
    x = 137,182,202.27/11,865.71
  6. Step 6: Final answer
    x = 11,561.23

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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.