Home / 10,475.80-15,711.26-3,078.27

Finding the Fourth Proportional to 10,475.80, 15,711.26 and 3,078.27

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Solution

The fourth proportional to 10,475.80, 15,711.26 and 3,078.27 is: 4,616.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,475.80 : 15,711.26 = 3,078.27 : x
  2. Step 2: Convert to fraction form
    10,475.80/15,711.26 = 3,078.27/x
  3. Step 3: Cross multiply
    10,475.80x = 15,711.26 × 3,078.27
  4. Step 4: Simplify right side
    10,475.80x = 48,363,500.32
  5. Step 5: Solve for x
    x = 48,363,500.32/10,475.80
  6. Step 6: Final answer
    x = 4,616.69

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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.