Home / 8,289.32-12,427.88-3,904.38

Finding the Fourth Proportional to 8,289.32, 12,427.88 and 3,904.38

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Solution

The fourth proportional to 8,289.32, 12,427.88 and 3,904.38 is: 5,853.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.32 : 12,427.88 = 3,904.38 : x
  2. Step 2: Convert to fraction form
    8,289.32/12,427.88 = 3,904.38/x
  3. Step 3: Cross multiply
    8,289.32x = 12,427.88 × 3,904.38
  4. Step 4: Simplify right side
    8,289.32x = 48,523,166.11
  5. Step 5: Solve for x
    x = 48,523,166.11/8,289.32
  6. Step 6: Final answer
    x = 5,853.70

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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.