Home / 16,921.89-25,387.17-5,075.64

Finding the Fourth Proportional to 16,921.89, 25,387.17 and 5,075.64

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Solution

The fourth proportional to 16,921.89, 25,387.17 and 5,075.64 is: 7,614.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,921.89 : 25,387.17 = 5,075.64 : x
  2. Step 2: Convert to fraction form
    16,921.89/25,387.17 = 5,075.64/x
  3. Step 3: Cross multiply
    16,921.89x = 25,387.17 × 5,075.64
  4. Step 4: Simplify right side
    16,921.89x = 128,856,135.54
  5. Step 5: Solve for x
    x = 128,856,135.54/16,921.89
  6. Step 6: Final answer
    x = 7,614.76

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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.