Home / 13,441.90-20,156.32-4,080.23

Finding the Fourth Proportional to 13,441.90, 20,156.32 and 4,080.23

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Solution

The fourth proportional to 13,441.90, 20,156.32 and 4,080.23 is: 6,118.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.90 : 20,156.32 = 4,080.23 : x
  2. Step 2: Convert to fraction form
    13,441.90/20,156.32 = 4,080.23/x
  3. Step 3: Cross multiply
    13,441.90x = 20,156.32 × 4,080.23
  4. Step 4: Simplify right side
    13,441.90x = 82,242,421.55
  5. Step 5: Solve for x
    x = 82,242,421.55/13,441.90
  6. Step 6: Final answer
    x = 6,118.36

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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.