Home / 9,179.45-12,667.60-5,402.59

Finding the Fourth Proportional to 9,179.45, 12,667.60 and 5,402.59

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Solution

The fourth proportional to 9,179.45, 12,667.60 and 5,402.59 is: 7,455.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,179.45 : 12,667.60 = 5,402.59 : x
  2. Step 2: Convert to fraction form
    9,179.45/12,667.60 = 5,402.59/x
  3. Step 3: Cross multiply
    9,179.45x = 12,667.60 × 5,402.59
  4. Step 4: Simplify right side
    9,179.45x = 68,437,785.75
  5. Step 5: Solve for x
    x = 68,437,785.75/9,179.45
  6. Step 6: Final answer
    x = 7,455.55

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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.