Home / 11,855.25-16,360.47-7,670.79

Finding the Fourth Proportional to 11,855.25, 16,360.47 and 7,670.79

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Solution

The fourth proportional to 11,855.25, 16,360.47 and 7,670.79 is: 10,585.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,855.25 : 16,360.47 = 7,670.79 : x
  2. Step 2: Convert to fraction form
    11,855.25/16,360.47 = 7,670.79/x
  3. Step 3: Cross multiply
    11,855.25x = 16,360.47 × 7,670.79
  4. Step 4: Simplify right side
    11,855.25x = 125,497,729.67
  5. Step 5: Solve for x
    x = 125,497,729.67/11,855.25
  6. Step 6: Final answer
    x = 10,585.84

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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.