Home / 13,815.01-20,719.40-4,453.24

Finding the Fourth Proportional to 13,815.01, 20,719.40 and 4,453.24

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Solution

The fourth proportional to 13,815.01, 20,719.40 and 4,453.24 is: 6,678.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815.01 : 20,719.40 = 4,453.24 : x
  2. Step 2: Convert to fraction form
    13,815.01/20,719.40 = 4,453.24/x
  3. Step 3: Cross multiply
    13,815.01x = 20,719.40 × 4,453.24
  4. Step 4: Simplify right side
    13,815.01x = 92,268,460.86
  5. Step 5: Solve for x
    x = 92,268,460.86/13,815.01
  6. Step 6: Final answer
    x = 6,678.86

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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.