Home / 9,174-12,660.18-4,982.28

Finding the Fourth Proportional to 9,174, 12,660.18 and 4,982.28

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Solution

The fourth proportional to 9,174, 12,660.18 and 4,982.28 is: 6,875.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,174 : 12,660.18 = 4,982.28 : x
  2. Step 2: Convert to fraction form
    9,174/12,660.18 = 4,982.28/x
  3. Step 3: Cross multiply
    9,174x = 12,660.18 × 4,982.28
  4. Step 4: Simplify right side
    9,174x = 63,076,561.61
  5. Step 5: Solve for x
    x = 63,076,561.61/9,174
  6. Step 6: Final answer
    x = 6,875.58

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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.