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Finding the Fourth Proportional to 19,008, 28,523.88 and 9,148.32

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Solution

The fourth proportional to 19,008, 28,523.88 and 9,148.32 is: 13,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008 : 28,523.88 = 9,148.32 : x
  2. Step 2: Convert to fraction form
    19,008/28,523.88 = 9,148.32/x
  3. Step 3: Cross multiply
    19,008x = 28,523.88 × 9,148.32
  4. Step 4: Simplify right side
    19,008x = 260,945,581.88
  5. Step 5: Solve for x
    x = 260,945,581.88/19,008
  6. Step 6: Final answer
    x = 13,728.20

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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.