Home / 19,190.70-26,460.54-13,143.87

Finding the Fourth Proportional to 19,190.70, 26,460.54 and 13,143.87

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Solution

The fourth proportional to 19,190.70, 26,460.54 and 13,143.87 is: 18,123.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,190.70 : 26,460.54 = 13,143.87 : x
  2. Step 2: Convert to fraction form
    19,190.70/26,460.54 = 13,143.87/x
  3. Step 3: Cross multiply
    19,190.70x = 26,460.54 × 13,143.87
  4. Step 4: Simplify right side
    19,190.70x = 347,793,842.44
  5. Step 5: Solve for x
    x = 347,793,842.44/19,190.70
  6. Step 6: Final answer
    x = 18,123.04

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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.