Home / 14,618.88-20,174.40-8,331.84

Finding the Fourth Proportional to 14,618.88, 20,174.40 and 8,331.84

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Solution

The fourth proportional to 14,618.88, 20,174.40 and 8,331.84 is: 11,498.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,618.88 : 20,174.40 = 8,331.84 : x
  2. Step 2: Convert to fraction form
    14,618.88/20,174.40 = 8,331.84/x
  3. Step 3: Cross multiply
    14,618.88x = 20,174.40 × 8,331.84
  4. Step 4: Simplify right side
    14,618.88x = 168,089,872.90
  5. Step 5: Solve for x
    x = 168,089,872.90/14,618.88
  6. Step 6: Final answer
    x = 11,498.14

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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.