Home / 11,141.70-15,377.09-6,425.88

Finding the Fourth Proportional to 11,141.70, 15,377.09 and 6,425.88

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Solution

The fourth proportional to 11,141.70, 15,377.09 and 6,425.88 is: 8,868.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,141.70 : 15,377.09 = 6,425.88 : x
  2. Step 2: Convert to fraction form
    11,141.70/15,377.09 = 6,425.88/x
  3. Step 3: Cross multiply
    11,141.70x = 15,377.09 × 6,425.88
  4. Step 4: Simplify right side
    11,141.70x = 98,811,302.96
  5. Step 5: Solve for x
    x = 98,811,302.96/11,141.70
  6. Step 6: Final answer
    x = 8,868.60

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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.