Home / 13,900.41-20,851.79-4,540.28

Finding the Fourth Proportional to 13,900.41, 20,851.79 and 4,540.28

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Solution

The fourth proportional to 13,900.41, 20,851.79 and 4,540.28 is: 6,810.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.41 : 20,851.79 = 4,540.28 : x
  2. Step 2: Convert to fraction form
    13,900.41/20,851.79 = 4,540.28/x
  3. Step 3: Cross multiply
    13,900.41x = 20,851.79 × 4,540.28
  4. Step 4: Simplify right side
    13,900.41x = 94,672,838.14
  5. Step 5: Solve for x
    x = 94,672,838.14/13,900.41
  6. Step 6: Final answer
    x = 6,810.79

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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.