Home / 10,179.36-15,273.90-6,485.76

Finding the Fourth Proportional to 10,179.36, 15,273.90 and 6,485.76

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Solution

The fourth proportional to 10,179.36, 15,273.90 and 6,485.76 is: 9,731.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,179.36 : 15,273.90 = 6,485.76 : x
  2. Step 2: Convert to fraction form
    10,179.36/15,273.90 = 6,485.76/x
  3. Step 3: Cross multiply
    10,179.36x = 15,273.90 × 6,485.76
  4. Step 4: Simplify right side
    10,179.36x = 99,062,849.66
  5. Step 5: Solve for x
    x = 99,062,849.66/10,179.36
  6. Step 6: Final answer
    x = 9,731.74

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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.