Home / 14,778.30-20,389.68-9,463.89

Finding the Fourth Proportional to 14,778.30, 20,389.68 and 9,463.89

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Solution

The fourth proportional to 14,778.30, 20,389.68 and 9,463.89 is: 13,057.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,778.30 : 20,389.68 = 9,463.89 : x
  2. Step 2: Convert to fraction form
    14,778.30/20,389.68 = 9,463.89/x
  3. Step 3: Cross multiply
    14,778.30x = 20,389.68 × 9,463.89
  4. Step 4: Simplify right side
    14,778.30x = 192,965,688.66
  5. Step 5: Solve for x
    x = 192,965,688.66/14,778.30
  6. Step 6: Final answer
    x = 13,057.37

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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.