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Finding the Fourth Proportional to 12,596.42, 17,385.47 and 8,339.97

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Solution

The fourth proportional to 12,596.42, 17,385.47 and 8,339.97 is: 11,510.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,596.42 : 17,385.47 = 8,339.97 : x
  2. Step 2: Convert to fraction form
    12,596.42/17,385.47 = 8,339.97/x
  3. Step 3: Cross multiply
    12,596.42x = 17,385.47 × 8,339.97
  4. Step 4: Simplify right side
    12,596.42x = 144,994,353.01
  5. Step 5: Solve for x
    x = 144,994,353.01/12,596.42
  6. Step 6: Final answer
    x = 11,510.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.