Home / 11,584.59-15,986.78-6,279.40

Finding the Fourth Proportional to 11,584.59, 15,986.78 and 6,279.40

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Solution

The fourth proportional to 11,584.59, 15,986.78 and 6,279.40 is: 8,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,584.59 : 15,986.78 = 6,279.40 : x
  2. Step 2: Convert to fraction form
    11,584.59/15,986.78 = 6,279.40/x
  3. Step 3: Cross multiply
    11,584.59x = 15,986.78 × 6,279.40
  4. Step 4: Simplify right side
    11,584.59x = 100,387,386.33
  5. Step 5: Solve for x
    x = 100,387,386.33/11,584.59
  6. Step 6: Final answer
    x = 8,665.60

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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.