Home / 10,003.12-13,810.20-6,863.92

Finding the Fourth Proportional to 10,003.12, 13,810.20 and 6,863.92

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Solution

The fourth proportional to 10,003.12, 13,810.20 and 6,863.92 is: 9,476.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,003.12 : 13,810.20 = 6,863.92 : x
  2. Step 2: Convert to fraction form
    10,003.12/13,810.20 = 6,863.92/x
  3. Step 3: Cross multiply
    10,003.12x = 13,810.20 × 6,863.92
  4. Step 4: Simplify right side
    10,003.12x = 94,792,107.98
  5. Step 5: Solve for x
    x = 94,792,107.98/10,003.12
  6. Step 6: Final answer
    x = 9,476.25

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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.