Home / 11,721.07-16,175.01-6,415.89

Finding the Fourth Proportional to 11,721.07, 16,175.01 and 6,415.89

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Solution

The fourth proportional to 11,721.07, 16,175.01 and 6,415.89 is: 8,853.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.07 : 16,175.01 = 6,415.89 : x
  2. Step 2: Convert to fraction form
    11,721.07/16,175.01 = 6,415.89/x
  3. Step 3: Cross multiply
    11,721.07x = 16,175.01 × 6,415.89
  4. Step 4: Simplify right side
    11,721.07x = 103,777,084.91
  5. Step 5: Solve for x
    x = 103,777,084.91/11,721.07
  6. Step 6: Final answer
    x = 8,853.89

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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.