Home / 10,257.96-14,152.20-7,868.36

Finding the Fourth Proportional to 10,257.96, 14,152.20 and 7,868.36

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Solution

The fourth proportional to 10,257.96, 14,152.20 and 7,868.36 is: 10,855.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,257.96 : 14,152.20 = 7,868.36 : x
  2. Step 2: Convert to fraction form
    10,257.96/14,152.20 = 7,868.36/x
  3. Step 3: Cross multiply
    10,257.96x = 14,152.20 × 7,868.36
  4. Step 4: Simplify right side
    10,257.96x = 111,354,604.39
  5. Step 5: Solve for x
    x = 111,354,604.39/10,257.96
  6. Step 6: Final answer
    x = 10,855.43

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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.