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Finding the Fourth Proportional to 12,328.84, 17,000.42 and 7,846.86

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Solution

The fourth proportional to 12,328.84, 17,000.42 and 7,846.86 is: 10,820.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,328.84 : 17,000.42 = 7,846.86 : x
  2. Step 2: Convert to fraction form
    12,328.84/17,000.42 = 7,846.86/x
  3. Step 3: Cross multiply
    12,328.84x = 17,000.42 × 7,846.86
  4. Step 4: Simplify right side
    12,328.84x = 133,399,915.68
  5. Step 5: Solve for x
    x = 133,399,915.68/12,328.84
  6. Step 6: Final answer
    x = 10,820.15

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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.