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Finding the Fourth Proportional to 12,045, 16,625.34 and 7,858.92

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Solution

The fourth proportional to 12,045, 16,625.34 and 7,858.92 is: 10,847.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045 : 16,625.34 = 7,858.92 : x
  2. Step 2: Convert to fraction form
    12,045/16,625.34 = 7,858.92/x
  3. Step 3: Cross multiply
    12,045x = 16,625.34 × 7,858.92
  4. Step 4: Simplify right side
    12,045x = 130,657,217.03
  5. Step 5: Solve for x
    x = 130,657,217.03/12,045
  6. Step 6: Final answer
    x = 10,847.42

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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.