Home / 10,455.52-15,682.74-2,663.86

Finding the Fourth Proportional to 10,455.52, 15,682.74 and 2,663.86

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Solution

The fourth proportional to 10,455.52, 15,682.74 and 2,663.86 is: 3,995.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.52 : 15,682.74 = 2,663.86 : x
  2. Step 2: Convert to fraction form
    10,455.52/15,682.74 = 2,663.86/x
  3. Step 3: Cross multiply
    10,455.52x = 15,682.74 × 2,663.86
  4. Step 4: Simplify right side
    10,455.52x = 41,776,623.78
  5. Step 5: Solve for x
    x = 41,776,623.78/10,455.52
  6. Step 6: Final answer
    x = 3,995.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.