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Finding the Fourth Proportional to 11,608.80, 16,020.08 and 6,303.60

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Solution

The fourth proportional to 11,608.80, 16,020.08 and 6,303.60 is: 8,698.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,608.80 : 16,020.08 = 6,303.60 : x
  2. Step 2: Convert to fraction form
    11,608.80/16,020.08 = 6,303.60/x
  3. Step 3: Cross multiply
    11,608.80x = 16,020.08 × 6,303.60
  4. Step 4: Simplify right side
    11,608.80x = 100,984,176.29
  5. Step 5: Solve for x
    x = 100,984,176.29/11,608.80
  6. Step 6: Final answer
    x = 8,698.93

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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.