Home / 10,003.94-13,800.80-6,468.28

Finding the Fourth Proportional to 10,003.94, 13,800.80 and 6,468.28

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Solution

The fourth proportional to 10,003.94, 13,800.80 and 6,468.28 is: 8,923.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,003.94 : 13,800.80 = 6,468.28 : x
  2. Step 2: Convert to fraction form
    10,003.94/13,800.80 = 6,468.28/x
  3. Step 3: Cross multiply
    10,003.94x = 13,800.80 × 6,468.28
  4. Step 4: Simplify right side
    10,003.94x = 89,267,438.62
  5. Step 5: Solve for x
    x = 89,267,438.62/10,003.94
  6. Step 6: Final answer
    x = 8,923.23

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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.