Home / 11,290.75-15,581.25-6,322.75

Finding the Fourth Proportional to 11,290.75, 15,581.25 and 6,322.75

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Solution

The fourth proportional to 11,290.75, 15,581.25 and 6,322.75 is: 8,725.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,290.75 : 15,581.25 = 6,322.75 : x
  2. Step 2: Convert to fraction form
    11,290.75/15,581.25 = 6,322.75/x
  3. Step 3: Cross multiply
    11,290.75x = 15,581.25 × 6,322.75
  4. Step 4: Simplify right side
    11,290.75x = 98,516,348.44
  5. Step 5: Solve for x
    x = 98,516,348.44/11,290.75
  6. Step 6: Final answer
    x = 8,725.40

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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.