Home / 8,579.30-12,861.74-3,652.40

Finding the Fourth Proportional to 8,579.30, 12,861.74 and 3,652.40

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Solution

The fourth proportional to 8,579.30, 12,861.74 and 3,652.40 is: 5,475.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.30 : 12,861.74 = 3,652.40 : x
  2. Step 2: Convert to fraction form
    8,579.30/12,861.74 = 3,652.40/x
  3. Step 3: Cross multiply
    8,579.30x = 12,861.74 × 3,652.40
  4. Step 4: Simplify right side
    8,579.30x = 46,976,219.18
  5. Step 5: Solve for x
    x = 46,976,219.18/8,579.30
  6. Step 6: Final answer
    x = 5,475.53

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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.