Home / 10,985.88-16,480.89-4,412.58

Finding the Fourth Proportional to 10,985.88, 16,480.89 and 4,412.58

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Solution

The fourth proportional to 10,985.88, 16,480.89 and 4,412.58 is: 6,619.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.88 : 16,480.89 = 4,412.58 : x
  2. Step 2: Convert to fraction form
    10,985.88/16,480.89 = 4,412.58/x
  3. Step 3: Cross multiply
    10,985.88x = 16,480.89 × 4,412.58
  4. Step 4: Simplify right side
    10,985.88x = 72,723,245.60
  5. Step 5: Solve for x
    x = 72,723,245.60/10,985.88
  6. Step 6: Final answer
    x = 6,619.70

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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.