Home / 13,810.78-20,713.27-4,451.64

Finding the Fourth Proportional to 13,810.78, 20,713.27 and 4,451.64

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Solution

The fourth proportional to 13,810.78, 20,713.27 and 4,451.64 is: 6,676.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,810.78 : 20,713.27 = 4,451.64 : x
  2. Step 2: Convert to fraction form
    13,810.78/20,713.27 = 4,451.64/x
  3. Step 3: Cross multiply
    13,810.78x = 20,713.27 × 4,451.64
  4. Step 4: Simplify right side
    13,810.78x = 92,208,021.26
  5. Step 5: Solve for x
    x = 92,208,021.26/13,810.78
  6. Step 6: Final answer
    x = 6,676.53

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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.