Home / 10,917.36-16,359.84-5,640.48

Finding the Fourth Proportional to 10,917.36, 16,359.84 and 5,640.48

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Solution

The fourth proportional to 10,917.36, 16,359.84 and 5,640.48 is: 8,452.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.36 : 16,359.84 = 5,640.48 : x
  2. Step 2: Convert to fraction form
    10,917.36/16,359.84 = 5,640.48/x
  3. Step 3: Cross multiply
    10,917.36x = 16,359.84 × 5,640.48
  4. Step 4: Simplify right side
    10,917.36x = 92,277,350.32
  5. Step 5: Solve for x
    x = 92,277,350.32/10,917.36
  6. Step 6: Final answer
    x = 8,452.35

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1.5x scale

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.