Home / 8,966.86-13,444.90-3,420.62

Finding the Fourth Proportional to 8,966.86, 13,444.90 and 3,420.62

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Solution

The fourth proportional to 8,966.86, 13,444.90 and 3,420.62 is: 5,128.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,966.86 : 13,444.90 = 3,420.62 : x
  2. Step 2: Convert to fraction form
    8,966.86/13,444.90 = 3,420.62/x
  3. Step 3: Cross multiply
    8,966.86x = 13,444.90 × 3,420.62
  4. Step 4: Simplify right side
    8,966.86x = 45,989,893.84
  5. Step 5: Solve for x
    x = 45,989,893.84/8,966.86
  6. Step 6: Final answer
    x = 5,128.87

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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.