Home / 8,174.82-11,253.02-7,125.06

Finding the Fourth Proportional to 8,174.82, 11,253.02 and 7,125.06

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Solution

The fourth proportional to 8,174.82, 11,253.02 and 7,125.06 is: 9,807.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,174.82 : 11,253.02 = 7,125.06 : x
  2. Step 2: Convert to fraction form
    8,174.82/11,253.02 = 7,125.06/x
  3. Step 3: Cross multiply
    8,174.82x = 11,253.02 × 7,125.06
  4. Step 4: Simplify right side
    8,174.82x = 80,178,407.06
  5. Step 5: Solve for x
    x = 80,178,407.06/8,174.82
  6. Step 6: Final answer
    x = 9,807.97

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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.