Home / 7,655.18-11,495.32-5,172.28

Finding the Fourth Proportional to 7,655.18, 11,495.32 and 5,172.28

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Solution

The fourth proportional to 7,655.18, 11,495.32 and 5,172.28 is: 7,766.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,655.18 : 11,495.32 = 5,172.28 : x
  2. Step 2: Convert to fraction form
    7,655.18/11,495.32 = 5,172.28/x
  3. Step 3: Cross multiply
    7,655.18x = 11,495.32 × 5,172.28
  4. Step 4: Simplify right side
    7,655.18x = 59,457,013.73
  5. Step 5: Solve for x
    x = 59,457,013.73/7,655.18
  6. Step 6: Final answer
    x = 7,766.90

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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.