Home / 16,072.80-22,172.64-10,405.92

Finding the Fourth Proportional to 16,072.80, 22,172.64 and 10,405.92

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Solution

The fourth proportional to 16,072.80, 22,172.64 and 10,405.92 is: 14,355.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,072.80 : 22,172.64 = 10,405.92 : x
  2. Step 2: Convert to fraction form
    16,072.80/22,172.64 = 10,405.92/x
  3. Step 3: Cross multiply
    16,072.80x = 22,172.64 × 10,405.92
  4. Step 4: Simplify right side
    16,072.80x = 230,726,718.03
  5. Step 5: Solve for x
    x = 230,726,718.03/16,072.80
  6. Step 6: Final answer
    x = 14,355.10

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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.