Home / 9,140.26-13,712.35-2,900.77

Finding the Fourth Proportional to 9,140.26, 13,712.35 and 2,900.77

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Solution

The fourth proportional to 9,140.26, 13,712.35 and 2,900.77 is: 4,351.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.26 : 13,712.35 = 2,900.77 : x
  2. Step 2: Convert to fraction form
    9,140.26/13,712.35 = 2,900.77/x
  3. Step 3: Cross multiply
    9,140.26x = 13,712.35 × 2,900.77
  4. Step 4: Simplify right side
    9,140.26x = 39,776,414.55
  5. Step 5: Solve for x
    x = 39,776,414.55/9,140.26
  6. Step 6: Final answer
    x = 4,351.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.