Home / 11,157.75-15,397.70-6,189.75

Finding the Fourth Proportional to 11,157.75, 15,397.70 and 6,189.75

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Solution

The fourth proportional to 11,157.75, 15,397.70 and 6,189.75 is: 8,541.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,157.75 : 15,397.70 = 6,189.75 : x
  2. Step 2: Convert to fraction form
    11,157.75/15,397.70 = 6,189.75/x
  3. Step 3: Cross multiply
    11,157.75x = 15,397.70 × 6,189.75
  4. Step 4: Simplify right side
    11,157.75x = 95,307,882.63
  5. Step 5: Solve for x
    x = 95,307,882.63/11,157.75
  6. Step 6: Final answer
    x = 8,541.86

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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.