Home / 14,074.89-19,421.64-8,108.49

Finding the Fourth Proportional to 14,074.89, 19,421.64 and 8,108.49

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Solution

The fourth proportional to 14,074.89, 19,421.64 and 8,108.49 is: 11,188.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,074.89 : 19,421.64 = 8,108.49 : x
  2. Step 2: Convert to fraction form
    14,074.89/19,421.64 = 8,108.49/x
  3. Step 3: Cross multiply
    14,074.89x = 19,421.64 × 8,108.49
  4. Step 4: Simplify right side
    14,074.89x = 157,480,173.72
  5. Step 5: Solve for x
    x = 157,480,173.72/14,074.89
  6. Step 6: Final answer
    x = 11,188.73

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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.