Home / 8,579.66-12,869.48-3,645.84

Finding the Fourth Proportional to 8,579.66, 12,869.48 and 3,645.84

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Solution

The fourth proportional to 8,579.66, 12,869.48 and 3,645.84 is: 5,468.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.66 : 12,869.48 = 3,645.84 : x
  2. Step 2: Convert to fraction form
    8,579.66/12,869.48 = 3,645.84/x
  3. Step 3: Cross multiply
    8,579.66x = 12,869.48 × 3,645.84
  4. Step 4: Simplify right side
    8,579.66x = 46,920,122.34
  5. Step 5: Solve for x
    x = 46,920,122.34/8,579.66
  6. Step 6: Final answer
    x = 5,468.77

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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.