Home / 7,002-9,663.30-4,911.12

Finding the Fourth Proportional to 7,002, 9,663.30 and 4,911.12

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Solution

The fourth proportional to 7,002, 9,663.30 and 4,911.12 is: 6,777.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,002 : 9,663.30 = 4,911.12 : x
  2. Step 2: Convert to fraction form
    7,002/9,663.30 = 4,911.12/x
  3. Step 3: Cross multiply
    7,002x = 9,663.30 × 4,911.12
  4. Step 4: Simplify right side
    7,002x = 47,457,625.90
  5. Step 5: Solve for x
    x = 47,457,625.90/7,002
  6. Step 6: Final answer
    x = 6,777.72

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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.