Home / 7,938.12-11,914.56-4,045.44

Finding the Fourth Proportional to 7,938.12, 11,914.56 and 4,045.44

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Solution

The fourth proportional to 7,938.12, 11,914.56 and 4,045.44 is: 6,071.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.12 : 11,914.56 = 4,045.44 : x
  2. Step 2: Convert to fraction form
    7,938.12/11,914.56 = 4,045.44/x
  3. Step 3: Cross multiply
    7,938.12x = 11,914.56 × 4,045.44
  4. Step 4: Simplify right side
    7,938.12x = 48,199,637.61
  5. Step 5: Solve for x
    x = 48,199,637.61/7,938.12
  6. Step 6: Final answer
    x = 6,071.92

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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.