Home / 8,970.86-13,450.82-3,418.28

Finding the Fourth Proportional to 8,970.86, 13,450.82 and 3,418.28

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Solution

The fourth proportional to 8,970.86, 13,450.82 and 3,418.28 is: 5,125.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970.86 : 13,450.82 = 3,418.28 : x
  2. Step 2: Convert to fraction form
    8,970.86/13,450.82 = 3,418.28/x
  3. Step 3: Cross multiply
    8,970.86x = 13,450.82 × 3,418.28
  4. Step 4: Simplify right side
    8,970.86x = 45,978,685.53
  5. Step 5: Solve for x
    x = 45,978,685.53/8,970.86
  6. Step 6: Final answer
    x = 5,125.34

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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.