Home / 14,778.83-20,392.94-9,401.88

Finding the Fourth Proportional to 14,778.83, 20,392.94 and 9,401.88

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Solution

The fourth proportional to 14,778.83, 20,392.94 and 9,401.88 is: 12,973.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,778.83 : 20,392.94 = 9,401.88 : x
  2. Step 2: Convert to fraction form
    14,778.83/20,392.94 = 9,401.88/x
  3. Step 3: Cross multiply
    14,778.83x = 20,392.94 × 9,401.88
  4. Step 4: Simplify right side
    14,778.83x = 191,731,998.23
  5. Step 5: Solve for x
    x = 191,731,998.23/14,778.83
  6. Step 6: Final answer
    x = 12,973.43

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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.