Home / 10,100.40-13,943.58-7,826.64

Finding the Fourth Proportional to 10,100.40, 13,943.58 and 7,826.64

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Solution

The fourth proportional to 10,100.40, 13,943.58 and 7,826.64 is: 10,804.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,100.40 : 13,943.58 = 7,826.64 : x
  2. Step 2: Convert to fraction form
    10,100.40/13,943.58 = 7,826.64/x
  3. Step 3: Cross multiply
    10,100.40x = 13,943.58 × 7,826.64
  4. Step 4: Simplify right side
    10,100.40x = 109,131,380.97
  5. Step 5: Solve for x
    x = 109,131,380.97/10,100.40
  6. Step 6: Final answer
    x = 10,804.66

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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.