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Finding the Fourth Proportional to 10,382, 15,573 and 3,457.04

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Solution

The fourth proportional to 10,382, 15,573 and 3,457.04 is: 5,185.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,382 : 15,573 = 3,457.04 : x
  2. Step 2: Convert to fraction form
    10,382/15,573 = 3,457.04/x
  3. Step 3: Cross multiply
    10,382x = 15,573 × 3,457.04
  4. Step 4: Simplify right side
    10,382x = 53,836,483.92
  5. Step 5: Solve for x
    x = 53,836,483.92/10,382
  6. Step 6: Final answer
    x = 5,185.56

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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.