Home / 15,655.10-21,604.04-8,581.37

Finding the Fourth Proportional to 15,655.10, 21,604.04 and 8,581.37

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Solution

The fourth proportional to 15,655.10, 21,604.04 and 8,581.37 is: 11,842.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,655.10 : 21,604.04 = 8,581.37 : x
  2. Step 2: Convert to fraction form
    15,655.10/21,604.04 = 8,581.37/x
  3. Step 3: Cross multiply
    15,655.10x = 21,604.04 × 8,581.37
  4. Step 4: Simplify right side
    15,655.10x = 185,392,260.73
  5. Step 5: Solve for x
    x = 185,392,260.73/15,655.10
  6. Step 6: Final answer
    x = 11,842.29

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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.