Home / 12,230.07-16,876.44-7,124.79

Finding the Fourth Proportional to 12,230.07, 16,876.44 and 7,124.79

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Solution

The fourth proportional to 12,230.07, 16,876.44 and 7,124.79 is: 9,831.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230.07 : 16,876.44 = 7,124.79 : x
  2. Step 2: Convert to fraction form
    12,230.07/16,876.44 = 7,124.79/x
  3. Step 3: Cross multiply
    12,230.07x = 16,876.44 × 7,124.79
  4. Step 4: Simplify right side
    12,230.07x = 120,241,090.95
  5. Step 5: Solve for x
    x = 120,241,090.95/12,230.07
  6. Step 6: Final answer
    x = 9,831.59

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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.