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Finding the Fourth Proportional to 12,596.42, 18,897.66 and 8,905.86

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Solution

The fourth proportional to 12,596.42, 18,897.66 and 8,905.86 is: 13,360.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,596.42 : 18,897.66 = 8,905.86 : x
  2. Step 2: Convert to fraction form
    12,596.42/18,897.66 = 8,905.86/x
  3. Step 3: Cross multiply
    12,596.42x = 18,897.66 × 8,905.86
  4. Step 4: Simplify right side
    12,596.42x = 168,299,914.29
  5. Step 5: Solve for x
    x = 168,299,914.29/12,596.42
  6. Step 6: Final answer
    x = 13,360.94

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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.