Home / 8,289.92-11,436.45-5,453.64

Finding the Fourth Proportional to 8,289.92, 11,436.45 and 5,453.64

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Solution

The fourth proportional to 8,289.92, 11,436.45 and 5,453.64 is: 7,523.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.92 : 11,436.45 = 5,453.64 : x
  2. Step 2: Convert to fraction form
    8,289.92/11,436.45 = 5,453.64/x
  3. Step 3: Cross multiply
    8,289.92x = 11,436.45 × 5,453.64
  4. Step 4: Simplify right side
    8,289.92x = 62,370,281.18
  5. Step 5: Solve for x
    x = 62,370,281.18/8,289.92
  6. Step 6: Final answer
    x = 7,523.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.