Home / 10,509.01-15,766.92-3,113.59

Finding the Fourth Proportional to 10,509.01, 15,766.92 and 3,113.59

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Solution

The fourth proportional to 10,509.01, 15,766.92 and 3,113.59 is: 4,671.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,509.01 : 15,766.92 = 3,113.59 : x
  2. Step 2: Convert to fraction form
    10,509.01/15,766.92 = 3,113.59/x
  3. Step 3: Cross multiply
    10,509.01x = 15,766.92 × 3,113.59
  4. Step 4: Simplify right side
    10,509.01x = 49,091,724.44
  5. Step 5: Solve for x
    x = 49,091,724.44/10,509.01
  6. Step 6: Final answer
    x = 4,671.39

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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.