Home / 12,647.36-17,458.14-9,512.60

Finding the Fourth Proportional to 12,647.36, 17,458.14 and 9,512.60

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Solution

The fourth proportional to 12,647.36, 17,458.14 and 9,512.60 is: 13,130.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,647.36 : 17,458.14 = 9,512.60 : x
  2. Step 2: Convert to fraction form
    12,647.36/17,458.14 = 9,512.60/x
  3. Step 3: Cross multiply
    12,647.36x = 17,458.14 × 9,512.60
  4. Step 4: Simplify right side
    12,647.36x = 166,072,302.56
  5. Step 5: Solve for x
    x = 166,072,302.56/12,647.36
  6. Step 6: Final answer
    x = 13,130.99

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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.