Home / 8,403.32-12,609.76-3,141.99

Finding the Fourth Proportional to 8,403.32, 12,609.76 and 3,141.99

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Solution

The fourth proportional to 8,403.32, 12,609.76 and 3,141.99 is: 4,714.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.32 : 12,609.76 = 3,141.99 : x
  2. Step 2: Convert to fraction form
    8,403.32/12,609.76 = 3,141.99/x
  3. Step 3: Cross multiply
    8,403.32x = 12,609.76 × 3,141.99
  4. Step 4: Simplify right side
    8,403.32x = 39,619,751.11
  5. Step 5: Solve for x
    x = 39,619,751.11/8,403.32
  6. Step 6: Final answer
    x = 4,714.77

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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.