Home / 11,161.87-15,403.80-6,126.30

Finding the Fourth Proportional to 11,161.87, 15,403.80 and 6,126.30

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Solution

The fourth proportional to 11,161.87, 15,403.80 and 6,126.30 is: 8,454.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.87 : 15,403.80 = 6,126.30 : x
  2. Step 2: Convert to fraction form
    11,161.87/15,403.80 = 6,126.30/x
  3. Step 3: Cross multiply
    11,161.87x = 15,403.80 × 6,126.30
  4. Step 4: Simplify right side
    11,161.87x = 94,368,322.91
  5. Step 5: Solve for x
    x = 94,368,322.91/11,161.87
  6. Step 6: Final answer
    x = 8,454.53

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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.