Home / 13,526.21-20,289.32-3,665.49

Finding the Fourth Proportional to 13,526.21, 20,289.32 and 3,665.49

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Solution

The fourth proportional to 13,526.21, 20,289.32 and 3,665.49 is: 5,498.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,526.21 : 20,289.32 = 3,665.49 : x
  2. Step 2: Convert to fraction form
    13,526.21/20,289.32 = 3,665.49/x
  3. Step 3: Cross multiply
    13,526.21x = 20,289.32 × 3,665.49
  4. Step 4: Simplify right side
    13,526.21x = 74,370,218.90
  5. Step 5: Solve for x
    x = 74,370,218.90/13,526.21
  6. Step 6: Final answer
    x = 5,498.23

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Similar ratio
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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.