Home / 10,802.79-16,204.77-3,407.81

Finding the Fourth Proportional to 10,802.79, 16,204.77 and 3,407.81

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Solution

The fourth proportional to 10,802.79, 16,204.77 and 3,407.81 is: 5,111.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,802.79 : 16,204.77 = 3,407.81 : x
  2. Step 2: Convert to fraction form
    10,802.79/16,204.77 = 3,407.81/x
  3. Step 3: Cross multiply
    10,802.79x = 16,204.77 × 3,407.81
  4. Step 4: Simplify right side
    10,802.79x = 55,222,696.23
  5. Step 5: Solve for x
    x = 55,222,696.23/10,802.79
  6. Step 6: Final answer
    x = 5,111.89

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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.