Home / 14,888.72-20,546.46-8,174.78

Finding the Fourth Proportional to 14,888.72, 20,546.46 and 8,174.78

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Solution

The fourth proportional to 14,888.72, 20,546.46 and 8,174.78 is: 11,281.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,888.72 : 20,546.46 = 8,174.78 : x
  2. Step 2: Convert to fraction form
    14,888.72/20,546.46 = 8,174.78/x
  3. Step 3: Cross multiply
    14,888.72x = 20,546.46 × 8,174.78
  4. Step 4: Simplify right side
    14,888.72x = 167,962,687.55
  5. Step 5: Solve for x
    x = 167,962,687.55/14,888.72
  6. Step 6: Final answer
    x = 11,281.21

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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.