Home / 14,190.55-19,577.41-8,221.07

Finding the Fourth Proportional to 14,190.55, 19,577.41 and 8,221.07

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Solution

The fourth proportional to 14,190.55, 19,577.41 and 8,221.07 is: 11,341.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,190.55 : 19,577.41 = 8,221.07 : x
  2. Step 2: Convert to fraction form
    14,190.55/19,577.41 = 8,221.07/x
  3. Step 3: Cross multiply
    14,190.55x = 19,577.41 × 8,221.07
  4. Step 4: Simplify right side
    14,190.55x = 160,947,242.92
  5. Step 5: Solve for x
    x = 160,947,242.92/14,190.55
  6. Step 6: Final answer
    x = 11,341.86

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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.