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Finding the Fourth Proportional to 8,704.72, 13,040.07 and 6,953.30

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Solution

The fourth proportional to 8,704.72, 13,040.07 and 6,953.30 is: 10,416.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,704.72 : 13,040.07 = 6,953.30 : x
  2. Step 2: Convert to fraction form
    8,704.72/13,040.07 = 6,953.30/x
  3. Step 3: Cross multiply
    8,704.72x = 13,040.07 × 6,953.30
  4. Step 4: Simplify right side
    8,704.72x = 90,671,518.73
  5. Step 5: Solve for x
    x = 90,671,518.73/8,704.72
  6. Step 6: Final answer
    x = 10,416.36

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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.