Home / 10,143.29-13,992.75-6,786.86

Finding the Fourth Proportional to 10,143.29, 13,992.75 and 6,786.86

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Solution

The fourth proportional to 10,143.29, 13,992.75 and 6,786.86 is: 9,362.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.29 : 13,992.75 = 6,786.86 : x
  2. Step 2: Convert to fraction form
    10,143.29/13,992.75 = 6,786.86/x
  3. Step 3: Cross multiply
    10,143.29x = 13,992.75 × 6,786.86
  4. Step 4: Simplify right side
    10,143.29x = 94,966,765.30
  5. Step 5: Solve for x
    x = 94,966,765.30/10,143.29
  6. Step 6: Final answer
    x = 9,362.52

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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.