Home / 8,288.55-11,439.32-5,636.81

Finding the Fourth Proportional to 8,288.55, 11,439.32 and 5,636.81

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Solution

The fourth proportional to 8,288.55, 11,439.32 and 5,636.81 is: 7,779.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,288.55 : 11,439.32 = 5,636.81 : x
  2. Step 2: Convert to fraction form
    8,288.55/11,439.32 = 5,636.81/x
  3. Step 3: Cross multiply
    8,288.55x = 11,439.32 × 5,636.81
  4. Step 4: Simplify right side
    8,288.55x = 64,481,187.99
  5. Step 5: Solve for x
    x = 64,481,187.99/8,288.55
  6. Step 6: Final answer
    x = 7,779.55

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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.