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Finding the Fourth Proportional to 10,619.93, 15,929.90 and 3,600

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Solution

The fourth proportional to 10,619.93, 15,929.90 and 3,600 is: 5,400.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,619.93 : 15,929.90 = 3,600 : x
  2. Step 2: Convert to fraction form
    10,619.93/15,929.90 = 3,600/x
  3. Step 3: Cross multiply
    10,619.93x = 15,929.90 × 3,600
  4. Step 4: Simplify right side
    10,619.93x = 57,347,622
  5. Step 5: Solve for x
    x = 57,347,622/10,619.93
  6. Step 6: Final answer
    x = 5,400.00

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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.