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Finding the Fourth Proportional to 18,804.72, 28,207.08 and 9,577.20

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Solution

The fourth proportional to 18,804.72, 28,207.08 and 9,577.20 is: 14,365.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,804.72 : 28,207.08 = 9,577.20 : x
  2. Step 2: Convert to fraction form
    18,804.72/28,207.08 = 9,577.20/x
  3. Step 3: Cross multiply
    18,804.72x = 28,207.08 × 9,577.20
  4. Step 4: Simplify right side
    18,804.72x = 270,144,846.58
  5. Step 5: Solve for x
    x = 270,144,846.58/18,804.72
  6. Step 6: Final answer
    x = 14,365.80

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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.