Home / 12,724.36-17,559.39-7,135.36

Finding the Fourth Proportional to 12,724.36, 17,559.39 and 7,135.36

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Solution

The fourth proportional to 12,724.36, 17,559.39 and 7,135.36 is: 9,846.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,724.36 : 17,559.39 = 7,135.36 : x
  2. Step 2: Convert to fraction form
    12,724.36/17,559.39 = 7,135.36/x
  3. Step 3: Cross multiply
    12,724.36x = 17,559.39 × 7,135.36
  4. Step 4: Simplify right side
    12,724.36x = 125,292,569.03
  5. Step 5: Solve for x
    x = 125,292,569.03/12,724.36
  6. Step 6: Final answer
    x = 9,846.67

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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.