Home / 8,454.20-11,667.48-4,677.72

Finding the Fourth Proportional to 8,454.20, 11,667.48 and 4,677.72

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Solution

The fourth proportional to 8,454.20, 11,667.48 and 4,677.72 is: 6,455.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,454.20 : 11,667.48 = 4,677.72 : x
  2. Step 2: Convert to fraction form
    8,454.20/11,667.48 = 4,677.72/x
  3. Step 3: Cross multiply
    8,454.20x = 11,667.48 × 4,677.72
  4. Step 4: Simplify right side
    8,454.20x = 54,577,204.55
  5. Step 5: Solve for x
    x = 54,577,204.55/8,454.20
  6. Step 6: Final answer
    x = 6,455.63

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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.