Home / 8,279.97-12,425.53-3,085.84

Finding the Fourth Proportional to 8,279.97, 12,425.53 and 3,085.84

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Solution

The fourth proportional to 8,279.97, 12,425.53 and 3,085.84 is: 4,630.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.97 : 12,425.53 = 3,085.84 : x
  2. Step 2: Convert to fraction form
    8,279.97/12,425.53 = 3,085.84/x
  3. Step 3: Cross multiply
    8,279.97x = 12,425.53 × 3,085.84
  4. Step 4: Simplify right side
    8,279.97x = 38,343,182.07
  5. Step 5: Solve for x
    x = 38,343,182.07/8,279.97
  6. Step 6: Final answer
    x = 4,630.84

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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.