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Finding the Fourth Proportional to 8,085.80, 12,045.24 and 7,841.04

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Solution

The fourth proportional to 8,085.80, 12,045.24 and 7,841.04 is: 11,680.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085.80 : 12,045.24 = 7,841.04 : x
  2. Step 2: Convert to fraction form
    8,085.80/12,045.24 = 7,841.04/x
  3. Step 3: Cross multiply
    8,085.80x = 12,045.24 × 7,841.04
  4. Step 4: Simplify right side
    8,085.80x = 94,447,208.65
  5. Step 5: Solve for x
    x = 94,447,208.65/8,085.80
  6. Step 6: Final answer
    x = 11,680.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.