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Finding the Fourth Proportional to 12,599, 18,899.28 and 3,834.56

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Solution

The fourth proportional to 12,599, 18,899.28 and 3,834.56 is: 5,752.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,599 : 18,899.28 = 3,834.56 : x
  2. Step 2: Convert to fraction form
    12,599/18,899.28 = 3,834.56/x
  3. Step 3: Cross multiply
    12,599x = 18,899.28 × 3,834.56
  4. Step 4: Simplify right side
    12,599x = 72,470,423.12
  5. Step 5: Solve for x
    x = 72,470,423.12/12,599
  6. Step 6: Final answer
    x = 5,752.08

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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.