Home / 15,480.05-23,218.85-5,621.54

Finding the Fourth Proportional to 15,480.05, 23,218.85 and 5,621.54

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Solution

The fourth proportional to 15,480.05, 23,218.85 and 5,621.54 is: 8,431.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,480.05 : 23,218.85 = 5,621.54 : x
  2. Step 2: Convert to fraction form
    15,480.05/23,218.85 = 5,621.54/x
  3. Step 3: Cross multiply
    15,480.05x = 23,218.85 × 5,621.54
  4. Step 4: Simplify right side
    15,480.05x = 130,525,591.99
  5. Step 5: Solve for x
    x = 130,525,591.99/15,480.05
  6. Step 6: Final answer
    x = 8,431.86

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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.