Home / 13,558.56-18,708.48-8,525.76

Finding the Fourth Proportional to 13,558.56, 18,708.48 and 8,525.76

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Solution

The fourth proportional to 13,558.56, 18,708.48 and 8,525.76 is: 11,764.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.56 : 18,708.48 = 8,525.76 : x
  2. Step 2: Convert to fraction form
    13,558.56/18,708.48 = 8,525.76/x
  3. Step 3: Cross multiply
    13,558.56x = 18,708.48 × 8,525.76
  4. Step 4: Simplify right side
    13,558.56x = 159,504,010.44
  5. Step 5: Solve for x
    x = 159,504,010.44/13,558.56
  6. Step 6: Final answer
    x = 11,764.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.