Home / 13,247.28-19,771.79-13,028.58

Finding the Fourth Proportional to 13,247.28, 19,771.79 and 13,028.58

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Solution

The fourth proportional to 13,247.28, 19,771.79 and 13,028.58 is: 19,445.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.28 : 19,771.79 = 13,028.58 : x
  2. Step 2: Convert to fraction form
    13,247.28/19,771.79 = 13,028.58/x
  3. Step 3: Cross multiply
    13,247.28x = 19,771.79 × 13,028.58
  4. Step 4: Simplify right side
    13,247.28x = 257,598,282.62
  5. Step 5: Solve for x
    x = 257,598,282.62/13,247.28
  6. Step 6: Final answer
    x = 19,445.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.