Home / 13,965.62-20,918.32-6,558.98

Finding the Fourth Proportional to 13,965.62, 20,918.32 and 6,558.98

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Solution

The fourth proportional to 13,965.62, 20,918.32 and 6,558.98 is: 9,824.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.62 : 20,918.32 = 6,558.98 : x
  2. Step 2: Convert to fraction form
    13,965.62/20,918.32 = 6,558.98/x
  3. Step 3: Cross multiply
    13,965.62x = 20,918.32 × 6,558.98
  4. Step 4: Simplify right side
    13,965.62x = 137,202,721.52
  5. Step 5: Solve for x
    x = 137,202,721.52/13,965.62
  6. Step 6: Final answer
    x = 9,824.32

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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.