Home / 13,417.36-20,131.73-7,175.75

Finding the Fourth Proportional to 13,417.36, 20,131.73 and 7,175.75

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Solution

The fourth proportional to 13,417.36, 20,131.73 and 7,175.75 is: 10,766.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.36 : 20,131.73 = 7,175.75 : x
  2. Step 2: Convert to fraction form
    13,417.36/20,131.73 = 7,175.75/x
  3. Step 3: Cross multiply
    13,417.36x = 20,131.73 × 7,175.75
  4. Step 4: Simplify right side
    13,417.36x = 144,460,261.55
  5. Step 5: Solve for x
    x = 144,460,261.55/13,417.36
  6. Step 6: Final answer
    x = 10,766.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.