Home / 17,711.40-26,535.10-10,309.80

Finding the Fourth Proportional to 17,711.40, 26,535.10 and 10,309.80

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Solution

The fourth proportional to 17,711.40, 26,535.10 and 10,309.80 is: 15,446.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,711.40 : 26,535.10 = 10,309.80 : x
  2. Step 2: Convert to fraction form
    17,711.40/26,535.10 = 10,309.80/x
  3. Step 3: Cross multiply
    17,711.40x = 26,535.10 × 10,309.80
  4. Step 4: Simplify right side
    17,711.40x = 273,571,573.98
  5. Step 5: Solve for x
    x = 273,571,573.98/17,711.40
  6. Step 6: Final answer
    x = 15,446.07

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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.