Home / 7,902.21-11,862.48-4,617.66

Finding the Fourth Proportional to 7,902.21, 11,862.48 and 4,617.66

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Solution

The fourth proportional to 7,902.21, 11,862.48 and 4,617.66 is: 6,931.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,902.21 : 11,862.48 = 4,617.66 : x
  2. Step 2: Convert to fraction form
    7,902.21/11,862.48 = 4,617.66/x
  3. Step 3: Cross multiply
    7,902.21x = 11,862.48 × 4,617.66
  4. Step 4: Simplify right side
    7,902.21x = 54,776,961.20
  5. Step 5: Solve for x
    x = 54,776,961.20/7,902.21
  6. Step 6: Final answer
    x = 6,931.85

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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.