Home / 13,356.30-20,028.27-7,811.34

Finding the Fourth Proportional to 13,356.30, 20,028.27 and 7,811.34

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Solution

The fourth proportional to 13,356.30, 20,028.27 and 7,811.34 is: 11,713.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356.30 : 20,028.27 = 7,811.34 : x
  2. Step 2: Convert to fraction form
    13,356.30/20,028.27 = 7,811.34/x
  3. Step 3: Cross multiply
    13,356.30x = 20,028.27 × 7,811.34
  4. Step 4: Simplify right side
    13,356.30x = 156,447,626.58
  5. Step 5: Solve for x
    x = 156,447,626.58/13,356.30
  6. Step 6: Final answer
    x = 11,713.40

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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.