Home / 8,427.15-12,639.51-3,497.90

Finding the Fourth Proportional to 8,427.15, 12,639.51 and 3,497.90

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Solution

The fourth proportional to 8,427.15, 12,639.51 and 3,497.90 is: 5,246.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.15 : 12,639.51 = 3,497.90 : x
  2. Step 2: Convert to fraction form
    8,427.15/12,639.51 = 3,497.90/x
  3. Step 3: Cross multiply
    8,427.15x = 12,639.51 × 3,497.90
  4. Step 4: Simplify right side
    8,427.15x = 44,211,678.83
  5. Step 5: Solve for x
    x = 44,211,678.83/8,427.15
  6. Step 6: Final answer
    x = 5,246.34

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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.