Home / 8,170.63-11,281.82-6,279.24

Finding the Fourth Proportional to 8,170.63, 11,281.82 and 6,279.24

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Solution

The fourth proportional to 8,170.63, 11,281.82 and 6,279.24 is: 8,670.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.63 : 11,281.82 = 6,279.24 : x
  2. Step 2: Convert to fraction form
    8,170.63/11,281.82 = 6,279.24/x
  3. Step 3: Cross multiply
    8,170.63x = 11,281.82 × 6,279.24
  4. Step 4: Simplify right side
    8,170.63x = 70,841,255.42
  5. Step 5: Solve for x
    x = 70,841,255.42/8,170.63
  6. Step 6: Final answer
    x = 8,670.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.