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Finding the Fourth Proportional to 19,002.86, 28,496.08 and 7,307.88

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Solution

The fourth proportional to 19,002.86, 28,496.08 and 7,307.88 is: 10,958.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,002.86 : 28,496.08 = 7,307.88 : x
  2. Step 2: Convert to fraction form
    19,002.86/28,496.08 = 7,307.88/x
  3. Step 3: Cross multiply
    19,002.86x = 28,496.08 × 7,307.88
  4. Step 4: Simplify right side
    19,002.86x = 208,245,933.11
  5. Step 5: Solve for x
    x = 208,245,933.11/19,002.86
  6. Step 6: Final answer
    x = 10,958.66

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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.