Home / 7,715.02-11,564.16-3,961.66

Finding the Fourth Proportional to 7,715.02, 11,564.16 and 3,961.66

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Solution

The fourth proportional to 7,715.02, 11,564.16 and 3,961.66 is: 5,938.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.02 : 11,564.16 = 3,961.66 : x
  2. Step 2: Convert to fraction form
    7,715.02/11,564.16 = 3,961.66/x
  3. Step 3: Cross multiply
    7,715.02x = 11,564.16 × 3,961.66
  4. Step 4: Simplify right side
    7,715.02x = 45,813,270.11
  5. Step 5: Solve for x
    x = 45,813,270.11/7,715.02
  6. Step 6: Final answer
    x = 5,938.19

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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.