Home / 8,456.48-11,669.98-4,628.12

Finding the Fourth Proportional to 8,456.48, 11,669.98 and 4,628.12

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Solution

The fourth proportional to 8,456.48, 11,669.98 and 4,628.12 is: 6,386.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.48 : 11,669.98 = 4,628.12 : x
  2. Step 2: Convert to fraction form
    8,456.48/11,669.98 = 4,628.12/x
  3. Step 3: Cross multiply
    8,456.48x = 11,669.98 × 4,628.12
  4. Step 4: Simplify right side
    8,456.48x = 54,010,067.84
  5. Step 5: Solve for x
    x = 54,010,067.84/8,456.48
  6. Step 6: Final answer
    x = 6,386.83

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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.