Home / 8,195.60-12,305.67-4,689.56

Finding the Fourth Proportional to 8,195.60, 12,305.67 and 4,689.56

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Solution

The fourth proportional to 8,195.60, 12,305.67 and 4,689.56 is: 7,041.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,195.60 : 12,305.67 = 4,689.56 : x
  2. Step 2: Convert to fraction form
    8,195.60/12,305.67 = 4,689.56/x
  3. Step 3: Cross multiply
    8,195.60x = 12,305.67 × 4,689.56
  4. Step 4: Simplify right side
    8,195.60x = 57,708,177.81
  5. Step 5: Solve for x
    x = 57,708,177.81/8,195.60
  6. Step 6: Final answer
    x = 7,041.36

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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.