Home / 12,072.02-18,102.90-5,502.38

Finding the Fourth Proportional to 12,072.02, 18,102.90 and 5,502.38

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Solution

The fourth proportional to 12,072.02, 18,102.90 and 5,502.38 is: 8,251.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072.02 : 18,102.90 = 5,502.38 : x
  2. Step 2: Convert to fraction form
    12,072.02/18,102.90 = 5,502.38/x
  3. Step 3: Cross multiply
    12,072.02x = 18,102.90 × 5,502.38
  4. Step 4: Simplify right side
    12,072.02x = 99,609,034.90
  5. Step 5: Solve for x
    x = 99,609,034.90/12,072.02
  6. Step 6: Final answer
    x = 8,251.23

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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.