Home / 12,689.10-19,033.77-5,669.47

Finding the Fourth Proportional to 12,689.10, 19,033.77 and 5,669.47

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Solution

The fourth proportional to 12,689.10, 19,033.77 and 5,669.47 is: 8,504.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,689.10 : 19,033.77 = 5,669.47 : x
  2. Step 2: Convert to fraction form
    12,689.10/19,033.77 = 5,669.47/x
  3. Step 3: Cross multiply
    12,689.10x = 19,033.77 × 5,669.47
  4. Step 4: Simplify right side
    12,689.10x = 107,911,388.00
  5. Step 5: Solve for x
    x = 107,911,388.00/12,689.10
  6. Step 6: Final answer
    x = 8,504.26

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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.