Home / 11,415.85-17,116.93-4,744.30

Finding the Fourth Proportional to 11,415.85, 17,116.93 and 4,744.30

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Solution

The fourth proportional to 11,415.85, 17,116.93 and 4,744.30 is: 7,113.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,415.85 : 17,116.93 = 4,744.30 : x
  2. Step 2: Convert to fraction form
    11,415.85/17,116.93 = 4,744.30/x
  3. Step 3: Cross multiply
    11,415.85x = 17,116.93 × 4,744.30
  4. Step 4: Simplify right side
    11,415.85x = 81,207,796.35
  5. Step 5: Solve for x
    x = 81,207,796.35/11,415.85
  6. Step 6: Final answer
    x = 7,113.60

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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.