Home / 10,310.85-15,465.01-4,390.12

Finding the Fourth Proportional to 10,310.85, 15,465.01 and 4,390.12

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Solution

The fourth proportional to 10,310.85, 15,465.01 and 4,390.12 is: 6,584.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,310.85 : 15,465.01 = 4,390.12 : x
  2. Step 2: Convert to fraction form
    10,310.85/15,465.01 = 4,390.12/x
  3. Step 3: Cross multiply
    10,310.85x = 15,465.01 × 4,390.12
  4. Step 4: Simplify right side
    10,310.85x = 67,893,238.73
  5. Step 5: Solve for x
    x = 67,893,238.73/10,310.85
  6. Step 6: Final answer
    x = 6,584.64

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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.