Home / 13,451.75-20,177.38-4,686.44

Finding the Fourth Proportional to 13,451.75, 20,177.38 and 4,686.44

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Solution

The fourth proportional to 13,451.75, 20,177.38 and 4,686.44 is: 7,029.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.75 : 20,177.38 = 4,686.44 : x
  2. Step 2: Convert to fraction form
    13,451.75/20,177.38 = 4,686.44/x
  3. Step 3: Cross multiply
    13,451.75x = 20,177.38 × 4,686.44
  4. Step 4: Simplify right side
    13,451.75x = 94,559,968.12
  5. Step 5: Solve for x
    x = 94,559,968.12/13,451.75
  6. Step 6: Final answer
    x = 7,029.57

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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.