Home / 11,165.50-15,408.45-6,976.18

Finding the Fourth Proportional to 11,165.50, 15,408.45 and 6,976.18

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Solution

The fourth proportional to 11,165.50, 15,408.45 and 6,976.18 is: 9,627.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,165.50 : 15,408.45 = 6,976.18 : x
  2. Step 2: Convert to fraction form
    11,165.50/15,408.45 = 6,976.18/x
  3. Step 3: Cross multiply
    11,165.50x = 15,408.45 × 6,976.18
  4. Step 4: Simplify right side
    11,165.50x = 107,492,120.72
  5. Step 5: Solve for x
    x = 107,492,120.72/11,165.50
  6. Step 6: Final answer
    x = 9,627.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.