Home / 10,655.72-15,983.52-2,863.88

Finding the Fourth Proportional to 10,655.72, 15,983.52 and 2,863.88

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Solution

The fourth proportional to 10,655.72, 15,983.52 and 2,863.88 is: 4,295.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,655.72 : 15,983.52 = 2,863.88 : x
  2. Step 2: Convert to fraction form
    10,655.72/15,983.52 = 2,863.88/x
  3. Step 3: Cross multiply
    10,655.72x = 15,983.52 × 2,863.88
  4. Step 4: Simplify right side
    10,655.72x = 45,774,883.26
  5. Step 5: Solve for x
    x = 45,774,883.26/10,655.72
  6. Step 6: Final answer
    x = 4,295.80

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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.