Home / 11,925.21-16,456.73-6,619.98

Finding the Fourth Proportional to 11,925.21, 16,456.73 and 6,619.98

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Solution

The fourth proportional to 11,925.21, 16,456.73 and 6,619.98 is: 9,135.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,925.21 : 16,456.73 = 6,619.98 : x
  2. Step 2: Convert to fraction form
    11,925.21/16,456.73 = 6,619.98/x
  3. Step 3: Cross multiply
    11,925.21x = 16,456.73 × 6,619.98
  4. Step 4: Simplify right side
    11,925.21x = 108,943,223.47
  5. Step 5: Solve for x
    x = 108,943,223.47/11,925.21
  6. Step 6: Final answer
    x = 9,135.54

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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.