Home / 9,942.03-13,721.33-6,415.49

Finding the Fourth Proportional to 9,942.03, 13,721.33 and 6,415.49

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Solution

The fourth proportional to 9,942.03, 13,721.33 and 6,415.49 is: 8,854.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,942.03 : 13,721.33 = 6,415.49 : x
  2. Step 2: Convert to fraction form
    9,942.03/13,721.33 = 6,415.49/x
  3. Step 3: Cross multiply
    9,942.03x = 13,721.33 × 6,415.49
  4. Step 4: Simplify right side
    9,942.03x = 88,029,055.40
  5. Step 5: Solve for x
    x = 88,029,055.40/9,942.03
  6. Step 6: Final answer
    x = 8,854.23

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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.