Home / 12,190.16-16,822.26-6,812.70

Finding the Fourth Proportional to 12,190.16, 16,822.26 and 6,812.70

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Solution

The fourth proportional to 12,190.16, 16,822.26 and 6,812.70 is: 9,401.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190.16 : 16,822.26 = 6,812.70 : x
  2. Step 2: Convert to fraction form
    12,190.16/16,822.26 = 6,812.70/x
  3. Step 3: Cross multiply
    12,190.16x = 16,822.26 × 6,812.70
  4. Step 4: Simplify right side
    12,190.16x = 114,605,010.70
  5. Step 5: Solve for x
    x = 114,605,010.70/12,190.16
  6. Step 6: Final answer
    x = 9,401.44

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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.