Home / 8,184.16-12,278.67-3,188.08

Finding the Fourth Proportional to 8,184.16, 12,278.67 and 3,188.08

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Solution

The fourth proportional to 8,184.16, 12,278.67 and 3,188.08 is: 4,783.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,184.16 : 12,278.67 = 3,188.08 : x
  2. Step 2: Convert to fraction form
    8,184.16/12,278.67 = 3,188.08/x
  3. Step 3: Cross multiply
    8,184.16x = 12,278.67 × 3,188.08
  4. Step 4: Simplify right side
    8,184.16x = 39,145,382.25
  5. Step 5: Solve for x
    x = 39,145,382.25/8,184.16
  6. Step 6: Final answer
    x = 4,783.07

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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.