Home / 8,429.57-12,646.88-2,506.65

Finding the Fourth Proportional to 8,429.57, 12,646.88 and 2,506.65

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Solution

The fourth proportional to 8,429.57, 12,646.88 and 2,506.65 is: 3,760.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,429.57 : 12,646.88 = 2,506.65 : x
  2. Step 2: Convert to fraction form
    8,429.57/12,646.88 = 2,506.65/x
  3. Step 3: Cross multiply
    8,429.57x = 12,646.88 × 2,506.65
  4. Step 4: Simplify right side
    8,429.57x = 31,701,265.29
  5. Step 5: Solve for x
    x = 31,701,265.29/8,429.57
  6. Step 6: Final answer
    x = 3,760.72

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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.