Home / 13,406.77-18,499.48-8,933.41

Finding the Fourth Proportional to 13,406.77, 18,499.48 and 8,933.41

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Solution

The fourth proportional to 13,406.77, 18,499.48 and 8,933.41 is: 12,326.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,406.77 : 18,499.48 = 8,933.41 : x
  2. Step 2: Convert to fraction form
    13,406.77/18,499.48 = 8,933.41/x
  3. Step 3: Cross multiply
    13,406.77x = 18,499.48 × 8,933.41
  4. Step 4: Simplify right side
    13,406.77x = 165,263,439.63
  5. Step 5: Solve for x
    x = 165,263,439.63/13,406.77
  6. Step 6: Final answer
    x = 12,326.86

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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.