Home / 11,120.41-15,350.03-6,406.57

Finding the Fourth Proportional to 11,120.41, 15,350.03 and 6,406.57

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Solution

The fourth proportional to 11,120.41, 15,350.03 and 6,406.57 is: 8,843.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.41 : 15,350.03 = 6,406.57 : x
  2. Step 2: Convert to fraction form
    11,120.41/15,350.03 = 6,406.57/x
  3. Step 3: Cross multiply
    11,120.41x = 15,350.03 × 6,406.57
  4. Step 4: Simplify right side
    11,120.41x = 98,341,041.70
  5. Step 5: Solve for x
    x = 98,341,041.70/11,120.41
  6. Step 6: Final answer
    x = 8,843.29

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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.