Home / 8,628.42-12,941.12-2,785.08

Finding the Fourth Proportional to 8,628.42, 12,941.12 and 2,785.08

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Solution

The fourth proportional to 8,628.42, 12,941.12 and 2,785.08 is: 4,177.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,628.42 : 12,941.12 = 2,785.08 : x
  2. Step 2: Convert to fraction form
    8,628.42/12,941.12 = 2,785.08/x
  3. Step 3: Cross multiply
    8,628.42x = 12,941.12 × 2,785.08
  4. Step 4: Simplify right side
    8,628.42x = 36,042,054.49
  5. Step 5: Solve for x
    x = 36,042,054.49/8,628.42
  6. Step 6: Final answer
    x = 4,177.13

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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.