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Finding the Fourth Proportional to 8,999.68, 13,500.80 and 2,844.16

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Solution

The fourth proportional to 8,999.68, 13,500.80 and 2,844.16 is: 4,266.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,999.68 : 13,500.80 = 2,844.16 : x
  2. Step 2: Convert to fraction form
    8,999.68/13,500.80 = 2,844.16/x
  3. Step 3: Cross multiply
    8,999.68x = 13,500.80 × 2,844.16
  4. Step 4: Simplify right side
    8,999.68x = 38,398,435.33
  5. Step 5: Solve for x
    x = 38,398,435.33/8,999.68
  6. Step 6: Final answer
    x = 4,266.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.