Home / 11,418.85-17,116.60-6,478.05

Finding the Fourth Proportional to 11,418.85, 17,116.60 and 6,478.05

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Solution

The fourth proportional to 11,418.85, 17,116.60 and 6,478.05 is: 9,710.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.85 : 17,116.60 = 6,478.05 : x
  2. Step 2: Convert to fraction form
    11,418.85/17,116.60 = 6,478.05/x
  3. Step 3: Cross multiply
    11,418.85x = 17,116.60 × 6,478.05
  4. Step 4: Simplify right side
    11,418.85x = 110,882,190.63
  5. Step 5: Solve for x
    x = 110,882,190.63/11,418.85
  6. Step 6: Final answer
    x = 9,710.45

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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.