Home / 14,458.70-19,935.51-11,105.30

Finding the Fourth Proportional to 14,458.70, 19,935.51 and 11,105.30

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Solution

The fourth proportional to 14,458.70, 19,935.51 and 11,105.30 is: 15,311.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,458.70 : 19,935.51 = 11,105.30 : x
  2. Step 2: Convert to fraction form
    14,458.70/19,935.51 = 11,105.30/x
  3. Step 3: Cross multiply
    14,458.70x = 19,935.51 × 11,105.30
  4. Step 4: Simplify right side
    14,458.70x = 221,389,819.20
  5. Step 5: Solve for x
    x = 221,389,819.20/14,458.70
  6. Step 6: Final answer
    x = 15,311.88

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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.