Home / 19,390.64-26,759.11-11,007.14

Finding the Fourth Proportional to 19,390.64, 26,759.11 and 11,007.14

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Solution

The fourth proportional to 19,390.64, 26,759.11 and 11,007.14 is: 15,189.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.64 : 26,759.11 = 11,007.14 : x
  2. Step 2: Convert to fraction form
    19,390.64/26,759.11 = 11,007.14/x
  3. Step 3: Cross multiply
    19,390.64x = 26,759.11 × 11,007.14
  4. Step 4: Simplify right side
    19,390.64x = 294,541,279.89
  5. Step 5: Solve for x
    x = 294,541,279.89/19,390.64
  6. Step 6: Final answer
    x = 15,189.87

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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.