Home / 9,126.30-13,687.48-2,886.79

Finding the Fourth Proportional to 9,126.30, 13,687.48 and 2,886.79

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Solution

The fourth proportional to 9,126.30, 13,687.48 and 2,886.79 is: 4,329.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,126.30 : 13,687.48 = 2,886.79 : x
  2. Step 2: Convert to fraction form
    9,126.30/13,687.48 = 2,886.79/x
  3. Step 3: Cross multiply
    9,126.30x = 13,687.48 × 2,886.79
  4. Step 4: Simplify right side
    9,126.30x = 39,512,880.39
  5. Step 5: Solve for x
    x = 39,512,880.39/9,126.30
  6. Step 6: Final answer
    x = 4,329.56

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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.