Home / 9,721.98-13,418.53-6,886.37

Finding the Fourth Proportional to 9,721.98, 13,418.53 and 6,886.37

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Solution

The fourth proportional to 9,721.98, 13,418.53 and 6,886.37 is: 9,504.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,721.98 : 13,418.53 = 6,886.37 : x
  2. Step 2: Convert to fraction form
    9,721.98/13,418.53 = 6,886.37/x
  3. Step 3: Cross multiply
    9,721.98x = 13,418.53 × 6,886.37
  4. Step 4: Simplify right side
    9,721.98x = 92,404,978.77
  5. Step 5: Solve for x
    x = 92,404,978.77/9,721.98
  6. Step 6: Final answer
    x = 9,504.75

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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.