Home / 12,717.56-17,550.36-7,415.60

Finding the Fourth Proportional to 12,717.56, 17,550.36 and 7,415.60

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Solution

The fourth proportional to 12,717.56, 17,550.36 and 7,415.60 is: 10,233.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,717.56 : 17,550.36 = 7,415.60 : x
  2. Step 2: Convert to fraction form
    12,717.56/17,550.36 = 7,415.60/x
  3. Step 3: Cross multiply
    12,717.56x = 17,550.36 × 7,415.60
  4. Step 4: Simplify right side
    12,717.56x = 130,146,449.62
  5. Step 5: Solve for x
    x = 130,146,449.62/12,717.56
  6. Step 6: Final answer
    x = 10,233.60

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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.