Home / 12,444.11-18,661.30-5,513.75

Finding the Fourth Proportional to 12,444.11, 18,661.30 and 5,513.75

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Solution

The fourth proportional to 12,444.11, 18,661.30 and 5,513.75 is: 8,268.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,444.11 : 18,661.30 = 5,513.75 : x
  2. Step 2: Convert to fraction form
    12,444.11/18,661.30 = 5,513.75/x
  3. Step 3: Cross multiply
    12,444.11x = 18,661.30 × 5,513.75
  4. Step 4: Simplify right side
    12,444.11x = 102,893,742.88
  5. Step 5: Solve for x
    x = 102,893,742.88/12,444.11
  6. Step 6: Final answer
    x = 8,268.47

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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.