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Finding the Fourth Proportional to 13,009.26, 17,953.48 and 7,343.76

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Solution

The fourth proportional to 13,009.26, 17,953.48 and 7,343.76 is: 10,134.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.26 : 17,953.48 = 7,343.76 : x
  2. Step 2: Convert to fraction form
    13,009.26/17,953.48 = 7,343.76/x
  3. Step 3: Cross multiply
    13,009.26x = 17,953.48 × 7,343.76
  4. Step 4: Simplify right side
    13,009.26x = 131,846,048.28
  5. Step 5: Solve for x
    x = 131,846,048.28/13,009.26
  6. Step 6: Final answer
    x = 10,134.78

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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.