Home / 13,558.23-20,334.54-7,317.09

Finding the Fourth Proportional to 13,558.23, 20,334.54 and 7,317.09

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Solution

The fourth proportional to 13,558.23, 20,334.54 and 7,317.09 is: 10,974.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.23 : 20,334.54 = 7,317.09 : x
  2. Step 2: Convert to fraction form
    13,558.23/20,334.54 = 7,317.09/x
  3. Step 3: Cross multiply
    13,558.23x = 20,334.54 × 7,317.09
  4. Step 4: Simplify right side
    13,558.23x = 148,789,659.29
  5. Step 5: Solve for x
    x = 148,789,659.29/13,558.23
  6. Step 6: Final answer
    x = 10,974.12

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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.