Home / 13,455.40-20,186.46-13,232.16

Finding the Fourth Proportional to 13,455.40, 20,186.46 and 13,232.16

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Solution

The fourth proportional to 13,455.40, 20,186.46 and 13,232.16 is: 19,851.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.40 : 20,186.46 = 13,232.16 : x
  2. Step 2: Convert to fraction form
    13,455.40/20,186.46 = 13,232.16/x
  3. Step 3: Cross multiply
    13,455.40x = 20,186.46 × 13,232.16
  4. Step 4: Simplify right side
    13,455.40x = 267,110,468.55
  5. Step 5: Solve for x
    x = 267,110,468.55/13,455.40
  6. Step 6: Final answer
    x = 19,851.54

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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.