Home / 11,389.62-17,108.72-10,723.80

Finding the Fourth Proportional to 11,389.62, 17,108.72 and 10,723.80

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Solution

The fourth proportional to 11,389.62, 17,108.72 and 10,723.80 is: 16,108.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,389.62 : 17,108.72 = 10,723.80 : x
  2. Step 2: Convert to fraction form
    11,389.62/17,108.72 = 10,723.80/x
  3. Step 3: Cross multiply
    11,389.62x = 17,108.72 × 10,723.80
  4. Step 4: Simplify right side
    11,389.62x = 183,470,491.54
  5. Step 5: Solve for x
    x = 183,470,491.54/11,389.62
  6. Step 6: Final answer
    x = 16,108.57

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1.5x scale

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.