Home / 13,509.42-20,225.99-7,169.96

Finding the Fourth Proportional to 13,509.42, 20,225.99 and 7,169.96

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Solution

The fourth proportional to 13,509.42, 20,225.99 and 7,169.96 is: 10,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,509.42 : 20,225.99 = 7,169.96 : x
  2. Step 2: Convert to fraction form
    13,509.42/20,225.99 = 7,169.96/x
  3. Step 3: Cross multiply
    13,509.42x = 20,225.99 × 7,169.96
  4. Step 4: Simplify right side
    13,509.42x = 145,019,539.26
  5. Step 5: Solve for x
    x = 145,019,539.26/13,509.42
  6. Step 6: Final answer
    x = 10,734.70

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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.