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Finding the Fourth Proportional to 6,676.34, 9,215.54 and 4,687.39

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Solution

The fourth proportional to 6,676.34, 9,215.54 and 4,687.39 is: 6,470.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,676.34 : 9,215.54 = 4,687.39 : x
  2. Step 2: Convert to fraction form
    6,676.34/9,215.54 = 4,687.39/x
  3. Step 3: Cross multiply
    6,676.34x = 9,215.54 × 4,687.39
  4. Step 4: Simplify right side
    6,676.34x = 43,196,830.04
  5. Step 5: Solve for x
    x = 43,196,830.04/6,676.34
  6. Step 6: Final answer
    x = 6,470.14

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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.