Home / 9,731.78-13,427.37-6,539.39

Finding the Fourth Proportional to 9,731.78, 13,427.37 and 6,539.39

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Solution

The fourth proportional to 9,731.78, 13,427.37 and 6,539.39 is: 9,022.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,731.78 : 13,427.37 = 6,539.39 : x
  2. Step 2: Convert to fraction form
    9,731.78/13,427.37 = 6,539.39/x
  3. Step 3: Cross multiply
    9,731.78x = 13,427.37 × 6,539.39
  4. Step 4: Simplify right side
    9,731.78x = 87,806,741.97
  5. Step 5: Solve for x
    x = 87,806,741.97/9,731.78
  6. Step 6: Final answer
    x = 9,022.69

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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.