Home / 12,664.23-18,994.86-5,266.77

Finding the Fourth Proportional to 12,664.23, 18,994.86 and 5,266.77

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Solution

The fourth proportional to 12,664.23, 18,994.86 and 5,266.77 is: 7,899.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.23 : 18,994.86 = 5,266.77 : x
  2. Step 2: Convert to fraction form
    12,664.23/18,994.86 = 5,266.77/x
  3. Step 3: Cross multiply
    12,664.23x = 18,994.86 × 5,266.77
  4. Step 4: Simplify right side
    12,664.23x = 100,041,558.80
  5. Step 5: Solve for x
    x = 100,041,558.80/12,664.23
  6. Step 6: Final answer
    x = 7,899.54

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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.