Home / 8,740.90-13,108.17-3,809.34

Finding the Fourth Proportional to 8,740.90, 13,108.17 and 3,809.34

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Solution

The fourth proportional to 8,740.90, 13,108.17 and 3,809.34 is: 5,712.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,740.90 : 13,108.17 = 3,809.34 : x
  2. Step 2: Convert to fraction form
    8,740.90/13,108.17 = 3,809.34/x
  3. Step 3: Cross multiply
    8,740.90x = 13,108.17 × 3,809.34
  4. Step 4: Simplify right side
    8,740.90x = 49,933,476.31
  5. Step 5: Solve for x
    x = 49,933,476.31/8,740.90
  6. Step 6: Final answer
    x = 5,712.62

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1.5x scale

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.