Home / 8,043.12-12,065.64-3,938.16

Finding the Fourth Proportional to 8,043.12, 12,065.64 and 3,938.16

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Solution

The fourth proportional to 8,043.12, 12,065.64 and 3,938.16 is: 5,907.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,043.12 : 12,065.64 = 3,938.16 : x
  2. Step 2: Convert to fraction form
    8,043.12/12,065.64 = 3,938.16/x
  3. Step 3: Cross multiply
    8,043.12x = 12,065.64 × 3,938.16
  4. Step 4: Simplify right side
    8,043.12x = 47,516,420.82
  5. Step 5: Solve for x
    x = 47,516,420.82/8,043.12
  6. Step 6: Final answer
    x = 5,907.71

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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.