Home / 14,401.45-19,876.54-11,439.89

Finding the Fourth Proportional to 14,401.45, 19,876.54 and 11,439.89

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Solution

The fourth proportional to 14,401.45, 19,876.54 and 11,439.89 is: 15,789.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,401.45 : 19,876.54 = 11,439.89 : x
  2. Step 2: Convert to fraction form
    14,401.45/19,876.54 = 11,439.89/x
  3. Step 3: Cross multiply
    14,401.45x = 19,876.54 × 11,439.89
  4. Step 4: Simplify right side
    14,401.45x = 227,385,331.80
  5. Step 5: Solve for x
    x = 227,385,331.80/14,401.45
  6. Step 6: Final answer
    x = 15,789.06

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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.