Home / 8,454.78-11,667.70-5,269.36

Finding the Fourth Proportional to 8,454.78, 11,667.70 and 5,269.36

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Solution

The fourth proportional to 8,454.78, 11,667.70 and 5,269.36 is: 7,271.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,454.78 : 11,667.70 = 5,269.36 : x
  2. Step 2: Convert to fraction form
    8,454.78/11,667.70 = 5,269.36/x
  3. Step 3: Cross multiply
    8,454.78x = 11,667.70 × 5,269.36
  4. Step 4: Simplify right side
    8,454.78x = 61,481,322.88
  5. Step 5: Solve for x
    x = 61,481,322.88/8,454.78
  6. Step 6: Final answer
    x = 7,271.79

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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.