Home / 11,907.89-16,433.71-6,603.20

Finding the Fourth Proportional to 11,907.89, 16,433.71 and 6,603.20

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Solution

The fourth proportional to 11,907.89, 16,433.71 and 6,603.20 is: 9,112.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,907.89 : 16,433.71 = 6,603.20 : x
  2. Step 2: Convert to fraction form
    11,907.89/16,433.71 = 6,603.20/x
  3. Step 3: Cross multiply
    11,907.89x = 16,433.71 × 6,603.20
  4. Step 4: Simplify right side
    11,907.89x = 108,514,975.20
  5. Step 5: Solve for x
    x = 108,514,975.20/11,907.89
  6. Step 6: Final answer
    x = 9,112.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.