Home / 9,116.20-13,666.80-4,118.90

Finding the Fourth Proportional to 9,116.20, 13,666.80 and 4,118.90

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Solution

The fourth proportional to 9,116.20, 13,666.80 and 4,118.90 is: 6,174.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,116.20 : 13,666.80 = 4,118.90 : x
  2. Step 2: Convert to fraction form
    9,116.20/13,666.80 = 4,118.90/x
  3. Step 3: Cross multiply
    9,116.20x = 13,666.80 × 4,118.90
  4. Step 4: Simplify right side
    9,116.20x = 56,292,182.52
  5. Step 5: Solve for x
    x = 56,292,182.52/9,116.20
  6. Step 6: Final answer
    x = 6,174.96

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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.