Home / 15,555.06-21,466.08-8,481.60

Finding the Fourth Proportional to 15,555.06, 21,466.08 and 8,481.60

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Solution

The fourth proportional to 15,555.06, 21,466.08 and 8,481.60 is: 11,704.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.06 : 21,466.08 = 8,481.60 : x
  2. Step 2: Convert to fraction form
    15,555.06/21,466.08 = 8,481.60/x
  3. Step 3: Cross multiply
    15,555.06x = 21,466.08 × 8,481.60
  4. Step 4: Simplify right side
    15,555.06x = 182,066,704.13
  5. Step 5: Solve for x
    x = 182,066,704.13/15,555.06
  6. Step 6: Final answer
    x = 11,704.66

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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.