Home / 12,844.80-19,267.26-5,447.40

Finding the Fourth Proportional to 12,844.80, 19,267.26 and 5,447.40

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Solution

The fourth proportional to 12,844.80, 19,267.26 and 5,447.40 is: 8,171.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,844.80 : 19,267.26 = 5,447.40 : x
  2. Step 2: Convert to fraction form
    12,844.80/19,267.26 = 5,447.40/x
  3. Step 3: Cross multiply
    12,844.80x = 19,267.26 × 5,447.40
  4. Step 4: Simplify right side
    12,844.80x = 104,956,472.12
  5. Step 5: Solve for x
    x = 104,956,472.12/12,844.80
  6. Step 6: Final answer
    x = 8,171.13

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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.