Home / 8,431.10-12,644.58-2,506.76

Finding the Fourth Proportional to 8,431.10, 12,644.58 and 2,506.76

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Solution

The fourth proportional to 8,431.10, 12,644.58 and 2,506.76 is: 3,759.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.10 : 12,644.58 = 2,506.76 : x
  2. Step 2: Convert to fraction form
    8,431.10/12,644.58 = 2,506.76/x
  3. Step 3: Cross multiply
    8,431.10x = 12,644.58 × 2,506.76
  4. Step 4: Simplify right side
    8,431.10x = 31,696,927.36
  5. Step 5: Solve for x
    x = 31,696,927.36/8,431.10
  6. Step 6: Final answer
    x = 3,759.52

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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.