Home / 10,267.05-14,143.97-9,766.78

Finding the Fourth Proportional to 10,267.05, 14,143.97 and 9,766.78

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Solution

The fourth proportional to 10,267.05, 14,143.97 and 9,766.78 is: 13,454.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,267.05 : 14,143.97 = 9,766.78 : x
  2. Step 2: Convert to fraction form
    10,267.05/14,143.97 = 9,766.78/x
  3. Step 3: Cross multiply
    10,267.05x = 14,143.97 × 9,766.78
  4. Step 4: Simplify right side
    10,267.05x = 138,140,977.44
  5. Step 5: Solve for x
    x = 138,140,977.44/10,267.05
  6. Step 6: Final answer
    x = 13,454.78

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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.