Home / 10,106.40-13,939.38-6,747.60

Finding the Fourth Proportional to 10,106.40, 13,939.38 and 6,747.60

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Solution

The fourth proportional to 10,106.40, 13,939.38 and 6,747.60 is: 9,306.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,106.40 : 13,939.38 = 6,747.60 : x
  2. Step 2: Convert to fraction form
    10,106.40/13,939.38 = 6,747.60/x
  3. Step 3: Cross multiply
    10,106.40x = 13,939.38 × 6,747.60
  4. Step 4: Simplify right side
    10,106.40x = 94,057,360.49
  5. Step 5: Solve for x
    x = 94,057,360.49/10,106.40
  6. Step 6: Final answer
    x = 9,306.71

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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.