Home / 8,465.26-12,706.10-4,085.80

Finding the Fourth Proportional to 8,465.26, 12,706.10 and 4,085.80

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Solution

The fourth proportional to 8,465.26, 12,706.10 and 4,085.80 is: 6,132.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,465.26 : 12,706.10 = 4,085.80 : x
  2. Step 2: Convert to fraction form
    8,465.26/12,706.10 = 4,085.80/x
  3. Step 3: Cross multiply
    8,465.26x = 12,706.10 × 4,085.80
  4. Step 4: Simplify right side
    8,465.26x = 51,914,583.38
  5. Step 5: Solve for x
    x = 51,914,583.38/8,465.26
  6. Step 6: Final answer
    x = 6,132.66

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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.