Home / 12,771.36-17,624.56-7,106.35

Finding the Fourth Proportional to 12,771.36, 17,624.56 and 7,106.35

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Solution

The fourth proportional to 12,771.36, 17,624.56 and 7,106.35 is: 9,806.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771.36 : 17,624.56 = 7,106.35 : x
  2. Step 2: Convert to fraction form
    12,771.36/17,624.56 = 7,106.35/x
  3. Step 3: Cross multiply
    12,771.36x = 17,624.56 × 7,106.35
  4. Step 4: Simplify right side
    12,771.36x = 125,246,203.83
  5. Step 5: Solve for x
    x = 125,246,203.83/12,771.36
  6. Step 6: Final answer
    x = 9,806.81

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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.