Home / 14,431.48-19,908.11-8,764.72

Finding the Fourth Proportional to 14,431.48, 19,908.11 and 8,764.72

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Solution

The fourth proportional to 14,431.48, 19,908.11 and 8,764.72 is: 12,090.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,431.48 : 19,908.11 = 8,764.72 : x
  2. Step 2: Convert to fraction form
    14,431.48/19,908.11 = 8,764.72/x
  3. Step 3: Cross multiply
    14,431.48x = 19,908.11 × 8,764.72
  4. Step 4: Simplify right side
    14,431.48x = 174,488,966.06
  5. Step 5: Solve for x
    x = 174,488,966.06/14,431.48
  6. Step 6: Final answer
    x = 12,090.86

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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.