Home / 13,123.43-19,663.23-9,220.85

Finding the Fourth Proportional to 13,123.43, 19,663.23 and 9,220.85

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Solution

The fourth proportional to 13,123.43, 19,663.23 and 9,220.85 is: 13,815.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,123.43 : 19,663.23 = 9,220.85 : x
  2. Step 2: Convert to fraction form
    13,123.43/19,663.23 = 9,220.85/x
  3. Step 3: Cross multiply
    13,123.43x = 19,663.23 × 9,220.85
  4. Step 4: Simplify right side
    13,123.43x = 181,311,694.35
  5. Step 5: Solve for x
    x = 181,311,694.35/13,123.43
  6. Step 6: Final answer
    x = 13,815.88

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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.