Home / 11,359.35-15,675.90-6,391.35

Finding the Fourth Proportional to 11,359.35, 15,675.90 and 6,391.35

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Solution

The fourth proportional to 11,359.35, 15,675.90 and 6,391.35 is: 8,820.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,359.35 : 15,675.90 = 6,391.35 : x
  2. Step 2: Convert to fraction form
    11,359.35/15,675.90 = 6,391.35/x
  3. Step 3: Cross multiply
    11,359.35x = 15,675.90 × 6,391.35
  4. Step 4: Simplify right side
    11,359.35x = 100,190,163.47
  5. Step 5: Solve for x
    x = 100,190,163.47/11,359.35
  6. Step 6: Final answer
    x = 8,820.06

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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.