Home / 8,357.21-12,535.82-2,809.07

Finding the Fourth Proportional to 8,357.21, 12,535.82 and 2,809.07

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Solution

The fourth proportional to 8,357.21, 12,535.82 and 2,809.07 is: 4,213.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,357.21 : 12,535.82 = 2,809.07 : x
  2. Step 2: Convert to fraction form
    8,357.21/12,535.82 = 2,809.07/x
  3. Step 3: Cross multiply
    8,357.21x = 12,535.82 × 2,809.07
  4. Step 4: Simplify right side
    8,357.21x = 35,213,919.16
  5. Step 5: Solve for x
    x = 35,213,919.16/8,357.21
  6. Step 6: Final answer
    x = 4,213.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.