Home / 13,505.32-20,262.30-7,345

Finding the Fourth Proportional to 13,505.32, 20,262.30 and 7,345

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Solution

The fourth proportional to 13,505.32, 20,262.30 and 7,345 is: 11,019.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505.32 : 20,262.30 = 7,345 : x
  2. Step 2: Convert to fraction form
    13,505.32/20,262.30 = 7,345/x
  3. Step 3: Cross multiply
    13,505.32x = 20,262.30 × 7,345
  4. Step 4: Simplify right side
    13,505.32x = 148,826,593.50
  5. Step 5: Solve for x
    x = 148,826,593.50/13,505.32
  6. Step 6: Final answer
    x = 11,019.85

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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.