Home / 12,974.58-17,905.29-7,309.39

Finding the Fourth Proportional to 12,974.58, 17,905.29 and 7,309.39

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Solution

The fourth proportional to 12,974.58, 17,905.29 and 7,309.39 is: 10,087.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,974.58 : 17,905.29 = 7,309.39 : x
  2. Step 2: Convert to fraction form
    12,974.58/17,905.29 = 7,309.39/x
  3. Step 3: Cross multiply
    12,974.58x = 17,905.29 × 7,309.39
  4. Step 4: Simplify right side
    12,974.58x = 130,876,621.60
  5. Step 5: Solve for x
    x = 130,876,621.60/12,974.58
  6. Step 6: Final answer
    x = 10,087.16

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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.