Home / 14,553.78-21,818.34-5,190.99

Finding the Fourth Proportional to 14,553.78, 21,818.34 and 5,190.99

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Solution

The fourth proportional to 14,553.78, 21,818.34 and 5,190.99 is: 7,782.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,553.78 : 21,818.34 = 5,190.99 : x
  2. Step 2: Convert to fraction form
    14,553.78/21,818.34 = 5,190.99/x
  3. Step 3: Cross multiply
    14,553.78x = 21,818.34 × 5,190.99
  4. Step 4: Simplify right side
    14,553.78x = 113,258,784.76
  5. Step 5: Solve for x
    x = 113,258,784.76/14,553.78
  6. Step 6: Final answer
    x = 7,782.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.