Home / 12,458.19-17,188.77-7,676.56

Finding the Fourth Proportional to 12,458.19, 17,188.77 and 7,676.56

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Solution

The fourth proportional to 12,458.19, 17,188.77 and 7,676.56 is: 10,591.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458.19 : 17,188.77 = 7,676.56 : x
  2. Step 2: Convert to fraction form
    12,458.19/17,188.77 = 7,676.56/x
  3. Step 3: Cross multiply
    12,458.19x = 17,188.77 × 7,676.56
  4. Step 4: Simplify right side
    12,458.19x = 131,950,624.23
  5. Step 5: Solve for x
    x = 131,950,624.23/12,458.19
  6. Step 6: Final answer
    x = 10,591.48

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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.