Home / 15,183.39-20,953.10-8,377.25

Finding the Fourth Proportional to 15,183.39, 20,953.10 and 8,377.25

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Solution

The fourth proportional to 15,183.39, 20,953.10 and 8,377.25 is: 11,560.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,183.39 : 20,953.10 = 8,377.25 : x
  2. Step 2: Convert to fraction form
    15,183.39/20,953.10 = 8,377.25/x
  3. Step 3: Cross multiply
    15,183.39x = 20,953.10 × 8,377.25
  4. Step 4: Simplify right side
    15,183.39x = 175,529,430.30
  5. Step 5: Solve for x
    x = 175,529,430.30/15,183.39
  6. Step 6: Final answer
    x = 11,560.62

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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.