Home / 13,602.36-20,420.82-11,563.32

Finding the Fourth Proportional to 13,602.36, 20,420.82 and 11,563.32

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Solution

The fourth proportional to 13,602.36, 20,420.82 and 11,563.32 is: 17,359.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,602.36 : 20,420.82 = 11,563.32 : x
  2. Step 2: Convert to fraction form
    13,602.36/20,420.82 = 11,563.32/x
  3. Step 3: Cross multiply
    13,602.36x = 20,420.82 × 11,563.32
  4. Step 4: Simplify right side
    13,602.36x = 236,132,476.32
  5. Step 5: Solve for x
    x = 236,132,476.32/13,602.36
  6. Step 6: Final answer
    x = 17,359.67

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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.