Home / 11,311.68-16,977.60-5,470.32

Finding the Fourth Proportional to 11,311.68, 16,977.60 and 5,470.32

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Solution

The fourth proportional to 11,311.68, 16,977.60 and 5,470.32 is: 8,210.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.68 : 16,977.60 = 5,470.32 : x
  2. Step 2: Convert to fraction form
    11,311.68/16,977.60 = 5,470.32/x
  3. Step 3: Cross multiply
    11,311.68x = 16,977.60 × 5,470.32
  4. Step 4: Simplify right side
    11,311.68x = 92,872,904.83
  5. Step 5: Solve for x
    x = 92,872,904.83/11,311.68
  6. Step 6: Final answer
    x = 8,210.35

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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.