Home / 14,189.21-19,581.76-8,141.25

Finding the Fourth Proportional to 14,189.21, 19,581.76 and 8,141.25

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Solution

The fourth proportional to 14,189.21, 19,581.76 and 8,141.25 is: 11,235.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,189.21 : 19,581.76 = 8,141.25 : x
  2. Step 2: Convert to fraction form
    14,189.21/19,581.76 = 8,141.25/x
  3. Step 3: Cross multiply
    14,189.21x = 19,581.76 × 8,141.25
  4. Step 4: Simplify right side
    14,189.21x = 159,420,003.60
  5. Step 5: Solve for x
    x = 159,420,003.60/14,189.21
  6. Step 6: Final answer
    x = 11,235.30

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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.