Home / 13,821.38-20,700.41-10,852.99

Finding the Fourth Proportional to 13,821.38, 20,700.41 and 10,852.99

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Solution

The fourth proportional to 13,821.38, 20,700.41 and 10,852.99 is: 16,254.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.38 : 20,700.41 = 10,852.99 : x
  2. Step 2: Convert to fraction form
    13,821.38/20,700.41 = 10,852.99/x
  3. Step 3: Cross multiply
    13,821.38x = 20,700.41 × 10,852.99
  4. Step 4: Simplify right side
    13,821.38x = 224,661,297.76
  5. Step 5: Solve for x
    x = 224,661,297.76/13,821.38
  6. Step 6: Final answer
    x = 16,254.62

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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.