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Finding the Fourth Proportional to 12,704.67, 19,035.95 and 8,988.48

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Solution

The fourth proportional to 12,704.67, 19,035.95 and 8,988.48 is: 13,467.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,704.67 : 19,035.95 = 8,988.48 : x
  2. Step 2: Convert to fraction form
    12,704.67/19,035.95 = 8,988.48/x
  3. Step 3: Cross multiply
    12,704.67x = 19,035.95 × 8,988.48
  4. Step 4: Simplify right side
    12,704.67x = 171,104,210.91
  5. Step 5: Solve for x
    x = 171,104,210.91/12,704.67
  6. Step 6: Final answer
    x = 13,467.82

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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.