Home / 8,270.68-12,405.99-3,590.08

Finding the Fourth Proportional to 8,270.68, 12,405.99 and 3,590.08

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Solution

The fourth proportional to 8,270.68, 12,405.99 and 3,590.08 is: 5,385.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,270.68 : 12,405.99 = 3,590.08 : x
  2. Step 2: Convert to fraction form
    8,270.68/12,405.99 = 3,590.08/x
  3. Step 3: Cross multiply
    8,270.68x = 12,405.99 × 3,590.08
  4. Step 4: Simplify right side
    8,270.68x = 44,538,513.92
  5. Step 5: Solve for x
    x = 44,538,513.92/8,270.68
  6. Step 6: Final answer
    x = 5,385.11

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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.