Home / 13,387.88-20,060.70-4,942.77

Finding the Fourth Proportional to 13,387.88, 20,060.70 and 4,942.77

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Solution

The fourth proportional to 13,387.88, 20,060.70 and 4,942.77 is: 7,406.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.88 : 20,060.70 = 4,942.77 : x
  2. Step 2: Convert to fraction form
    13,387.88/20,060.70 = 4,942.77/x
  3. Step 3: Cross multiply
    13,387.88x = 20,060.70 × 4,942.77
  4. Step 4: Simplify right side
    13,387.88x = 99,155,388.89
  5. Step 5: Solve for x
    x = 99,155,388.89/13,387.88
  6. Step 6: Final answer
    x = 7,406.36

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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.