Home / 12,649.23-18,974.77-4,858.05

Finding the Fourth Proportional to 12,649.23, 18,974.77 and 4,858.05

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Solution

The fourth proportional to 12,649.23, 18,974.77 and 4,858.05 is: 7,287.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,649.23 : 18,974.77 = 4,858.05 : x
  2. Step 2: Convert to fraction form
    12,649.23/18,974.77 = 4,858.05/x
  3. Step 3: Cross multiply
    12,649.23x = 18,974.77 × 4,858.05
  4. Step 4: Simplify right side
    12,649.23x = 92,180,381.40
  5. Step 5: Solve for x
    x = 92,180,381.40/12,649.23
  6. Step 6: Final answer
    x = 7,287.43

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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.