Home / 13,879.35-19,153.11-7,591.32

Finding the Fourth Proportional to 13,879.35, 19,153.11 and 7,591.32

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Solution

The fourth proportional to 13,879.35, 19,153.11 and 7,591.32 is: 10,475.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879.35 : 19,153.11 = 7,591.32 : x
  2. Step 2: Convert to fraction form
    13,879.35/19,153.11 = 7,591.32/x
  3. Step 3: Cross multiply
    13,879.35x = 19,153.11 × 7,591.32
  4. Step 4: Simplify right side
    13,879.35x = 145,397,387.01
  5. Step 5: Solve for x
    x = 145,397,387.01/13,879.35
  6. Step 6: Final answer
    x = 10,475.81

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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.