Home / 13,823.98-20,735.86-6,424.32

Finding the Fourth Proportional to 13,823.98, 20,735.86 and 6,424.32

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Solution

The fourth proportional to 13,823.98, 20,735.86 and 6,424.32 is: 9,636.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.98 : 20,735.86 = 6,424.32 : x
  2. Step 2: Convert to fraction form
    13,823.98/20,735.86 = 6,424.32/x
  3. Step 3: Cross multiply
    13,823.98x = 20,735.86 × 6,424.32
  4. Step 4: Simplify right side
    13,823.98x = 133,213,800.12
  5. Step 5: Solve for x
    x = 133,213,800.12/13,823.98
  6. Step 6: Final answer
    x = 9,636.43

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1.5x scale

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.