Home / 14,625.45-20,183.10-7,911

Finding the Fourth Proportional to 14,625.45, 20,183.10 and 7,911

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Solution

The fourth proportional to 14,625.45, 20,183.10 and 7,911 is: 10,917.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,625.45 : 20,183.10 = 7,911 : x
  2. Step 2: Convert to fraction form
    14,625.45/20,183.10 = 7,911/x
  3. Step 3: Cross multiply
    14,625.45x = 20,183.10 × 7,911
  4. Step 4: Simplify right side
    14,625.45x = 159,668,504.10
  5. Step 5: Solve for x
    x = 159,668,504.10/14,625.45
  6. Step 6: Final answer
    x = 10,917.17

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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.