Home / 8,279.08-12,420.65-2,435.74

Finding the Fourth Proportional to 8,279.08, 12,420.65 and 2,435.74

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Solution

The fourth proportional to 8,279.08, 12,420.65 and 2,435.74 is: 3,654.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.08 : 12,420.65 = 2,435.74 : x
  2. Step 2: Convert to fraction form
    8,279.08/12,420.65 = 2,435.74/x
  3. Step 3: Cross multiply
    8,279.08x = 12,420.65 × 2,435.74
  4. Step 4: Simplify right side
    8,279.08x = 30,253,474.03
  5. Step 5: Solve for x
    x = 30,253,474.03/8,279.08
  6. Step 6: Final answer
    x = 3,654.21

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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.