Home / 8,174.34-11,279.94-4,638.12

Finding the Fourth Proportional to 8,174.34, 11,279.94 and 4,638.12

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Solution

The fourth proportional to 8,174.34, 11,279.94 and 4,638.12 is: 6,400.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,174.34 : 11,279.94 = 4,638.12 : x
  2. Step 2: Convert to fraction form
    8,174.34/11,279.94 = 4,638.12/x
  3. Step 3: Cross multiply
    8,174.34x = 11,279.94 × 4,638.12
  4. Step 4: Simplify right side
    8,174.34x = 52,317,715.31
  5. Step 5: Solve for x
    x = 52,317,715.31/8,174.34
  6. Step 6: Final answer
    x = 6,400.24

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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.