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Finding the Fourth Proportional to 10,802.52, 16,206 and 3,407.52

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Solution

The fourth proportional to 10,802.52, 16,206 and 3,407.52 is: 5,111.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,802.52 : 16,206 = 3,407.52 : x
  2. Step 2: Convert to fraction form
    10,802.52/16,206 = 3,407.52/x
  3. Step 3: Cross multiply
    10,802.52x = 16,206 × 3,407.52
  4. Step 4: Simplify right side
    10,802.52x = 55,222,269.12
  5. Step 5: Solve for x
    x = 55,222,269.12/10,802.52
  6. Step 6: Final answer
    x = 5,111.98

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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.