Home / 11,907.51-16,429.89-6,601.20

Finding the Fourth Proportional to 11,907.51, 16,429.89 and 6,601.20

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Solution

The fourth proportional to 11,907.51, 16,429.89 and 6,601.20 is: 9,108.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,907.51 : 16,429.89 = 6,601.20 : x
  2. Step 2: Convert to fraction form
    11,907.51/16,429.89 = 6,601.20/x
  3. Step 3: Cross multiply
    11,907.51x = 16,429.89 × 6,601.20
  4. Step 4: Simplify right side
    11,907.51x = 108,456,915.88
  5. Step 5: Solve for x
    x = 108,456,915.88/11,907.51
  6. Step 6: Final answer
    x = 9,108.28

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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.