Home / 13,240.56-19,861.80-5,451.12

Finding the Fourth Proportional to 13,240.56, 19,861.80 and 5,451.12

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Solution

The fourth proportional to 13,240.56, 19,861.80 and 5,451.12 is: 8,177.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.56 : 19,861.80 = 5,451.12 : x
  2. Step 2: Convert to fraction form
    13,240.56/19,861.80 = 5,451.12/x
  3. Step 3: Cross multiply
    13,240.56x = 19,861.80 × 5,451.12
  4. Step 4: Simplify right side
    13,240.56x = 108,269,055.22
  5. Step 5: Solve for x
    x = 108,269,055.22/13,240.56
  6. Step 6: Final answer
    x = 8,177.08

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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.