Home / 10,186.02-15,279.04-2,790.54

Finding the Fourth Proportional to 10,186.02, 15,279.04 and 2,790.54

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Solution

The fourth proportional to 10,186.02, 15,279.04 and 2,790.54 is: 4,185.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,186.02 : 15,279.04 = 2,790.54 : x
  2. Step 2: Convert to fraction form
    10,186.02/15,279.04 = 2,790.54/x
  3. Step 3: Cross multiply
    10,186.02x = 15,279.04 × 2,790.54
  4. Step 4: Simplify right side
    10,186.02x = 42,636,772.28
  5. Step 5: Solve for x
    x = 42,636,772.28/10,186.02
  6. Step 6: Final answer
    x = 4,185.81

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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.