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Finding the Fourth Proportional to 14,548.80, 21,832.80 and 8,308.80

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Solution

The fourth proportional to 14,548.80, 21,832.80 and 8,308.80 is: 12,468.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,548.80 : 21,832.80 = 8,308.80 : x
  2. Step 2: Convert to fraction form
    14,548.80/21,832.80 = 8,308.80/x
  3. Step 3: Cross multiply
    14,548.80x = 21,832.80 × 8,308.80
  4. Step 4: Simplify right side
    14,548.80x = 181,404,368.64
  5. Step 5: Solve for x
    x = 181,404,368.64/14,548.80
  6. Step 6: Final answer
    x = 12,468.68

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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.