Home / 16,921.75-25,385.05-5,235.88

Finding the Fourth Proportional to 16,921.75, 25,385.05 and 5,235.88

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Solution

The fourth proportional to 16,921.75, 25,385.05 and 5,235.88 is: 7,854.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,921.75 : 25,385.05 = 5,235.88 : x
  2. Step 2: Convert to fraction form
    16,921.75/25,385.05 = 5,235.88/x
  3. Step 3: Cross multiply
    16,921.75x = 25,385.05 × 5,235.88
  4. Step 4: Simplify right side
    16,921.75x = 132,913,075.59
  5. Step 5: Solve for x
    x = 132,913,075.59/16,921.75
  6. Step 6: Final answer
    x = 7,854.57

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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.