Home / 8,305.79-12,456.56-2,461.03

Finding the Fourth Proportional to 8,305.79, 12,456.56 and 2,461.03

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Solution

The fourth proportional to 8,305.79, 12,456.56 and 2,461.03 is: 3,690.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305.79 : 12,456.56 = 2,461.03 : x
  2. Step 2: Convert to fraction form
    8,305.79/12,456.56 = 2,461.03/x
  3. Step 3: Cross multiply
    8,305.79x = 12,456.56 × 2,461.03
  4. Step 4: Simplify right side
    8,305.79x = 30,655,942.87
  5. Step 5: Solve for x
    x = 30,655,942.87/8,305.79
  6. Step 6: Final answer
    x = 3,690.91

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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.