Home / 15,176.00-20,895.21-12,902.87

Finding the Fourth Proportional to 15,176.00, 20,895.21 and 12,902.87

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Solution

The fourth proportional to 15,176.00, 20,895.21 and 12,902.87 is: 17,765.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,176.00 : 20,895.21 = 12,902.87 : x
  2. Step 2: Convert to fraction form
    15,176.00/20,895.21 = 12,902.87/x
  3. Step 3: Cross multiply
    15,176.00x = 20,895.21 × 12,902.87
  4. Step 4: Simplify right side
    15,176.00x = 269,608,073.78
  5. Step 5: Solve for x
    x = 269,608,073.78/15,176.00
  6. Step 6: Final answer
    x = 17,765.43

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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.