Home / 8,591.25-11,856.75-4,815.05

Finding the Fourth Proportional to 8,591.25, 11,856.75 and 4,815.05

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Solution

The fourth proportional to 8,591.25, 11,856.75 and 4,815.05 is: 6,645.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,591.25 : 11,856.75 = 4,815.05 : x
  2. Step 2: Convert to fraction form
    8,591.25/11,856.75 = 4,815.05/x
  3. Step 3: Cross multiply
    8,591.25x = 11,856.75 × 4,815.05
  4. Step 4: Simplify right side
    8,591.25x = 57,090,844.09
  5. Step 5: Solve for x
    x = 57,090,844.09/8,591.25
  6. Step 6: Final answer
    x = 6,645.24

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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.