Home / 11,425.16-15,765.90-6,708.80

Finding the Fourth Proportional to 11,425.16, 15,765.90 and 6,708.80

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Solution

The fourth proportional to 11,425.16, 15,765.90 and 6,708.80 is: 9,257.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,425.16 : 15,765.90 = 6,708.80 : x
  2. Step 2: Convert to fraction form
    11,425.16/15,765.90 = 6,708.80/x
  3. Step 3: Cross multiply
    11,425.16x = 15,765.90 × 6,708.80
  4. Step 4: Simplify right side
    11,425.16x = 105,770,269.92
  5. Step 5: Solve for x
    x = 105,770,269.92/11,425.16
  6. Step 6: Final answer
    x = 9,257.66

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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.