Home / 14,495.31-19,998.84-8,120.97

Finding the Fourth Proportional to 14,495.31, 19,998.84 and 8,120.97

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Solution

The fourth proportional to 14,495.31, 19,998.84 and 8,120.97 is: 11,204.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,495.31 : 19,998.84 = 8,120.97 : x
  2. Step 2: Convert to fraction form
    14,495.31/19,998.84 = 8,120.97/x
  3. Step 3: Cross multiply
    14,495.31x = 19,998.84 × 8,120.97
  4. Step 4: Simplify right side
    14,495.31x = 162,409,979.67
  5. Step 5: Solve for x
    x = 162,409,979.67/14,495.31
  6. Step 6: Final answer
    x = 11,204.31

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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.