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Finding the Fourth Proportional to 14,548.80, 21,823.20 and 9,019.20

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Solution

The fourth proportional to 14,548.80, 21,823.20 and 9,019.20 is: 13,528.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,548.80 : 21,823.20 = 9,019.20 : x
  2. Step 2: Convert to fraction form
    14,548.80/21,823.20 = 9,019.20/x
  3. Step 3: Cross multiply
    14,548.80x = 21,823.20 × 9,019.20
  4. Step 4: Simplify right side
    14,548.80x = 196,827,805.44
  5. Step 5: Solve for x
    x = 196,827,805.44/14,548.80
  6. Step 6: Final answer
    x = 13,528.80

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Similar ratio
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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.