Home / 12,646.33-18,971.01-3,880.10

Finding the Fourth Proportional to 12,646.33, 18,971.01 and 3,880.10

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Solution

The fourth proportional to 12,646.33, 18,971.01 and 3,880.10 is: 5,820.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.33 : 18,971.01 = 3,880.10 : x
  2. Step 2: Convert to fraction form
    12,646.33/18,971.01 = 3,880.10/x
  3. Step 3: Cross multiply
    12,646.33x = 18,971.01 × 3,880.10
  4. Step 4: Simplify right side
    12,646.33x = 73,609,463.33
  5. Step 5: Solve for x
    x = 73,609,463.33/12,646.33
  6. Step 6: Final answer
    x = 5,820.62

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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.