Home / 15,701.44-21,668.08-8,627.68

Finding the Fourth Proportional to 15,701.44, 21,668.08 and 8,627.68

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Solution

The fourth proportional to 15,701.44, 21,668.08 and 8,627.68 is: 11,906.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,701.44 : 21,668.08 = 8,627.68 : x
  2. Step 2: Convert to fraction form
    15,701.44/21,668.08 = 8,627.68/x
  3. Step 3: Cross multiply
    15,701.44x = 21,668.08 × 8,627.68
  4. Step 4: Simplify right side
    15,701.44x = 186,945,260.45
  5. Step 5: Solve for x
    x = 186,945,260.45/15,701.44
  6. Step 6: Final answer
    x = 11,906.25

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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.