Home / 11,584.08-15,985.60-6,278.78

Finding the Fourth Proportional to 11,584.08, 15,985.60 and 6,278.78

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Solution

The fourth proportional to 11,584.08, 15,985.60 and 6,278.78 is: 8,664.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,584.08 : 15,985.60 = 6,278.78 : x
  2. Step 2: Convert to fraction form
    11,584.08/15,985.60 = 6,278.78/x
  3. Step 3: Cross multiply
    11,584.08x = 15,985.60 × 6,278.78
  4. Step 4: Simplify right side
    11,584.08x = 100,370,065.57
  5. Step 5: Solve for x
    x = 100,370,065.57/11,584.08
  6. Step 6: Final answer
    x = 8,664.48

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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.