Home / 8,177.67-11,288.55-5,528.64

Finding the Fourth Proportional to 8,177.67, 11,288.55 and 5,528.64

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Solution

The fourth proportional to 8,177.67, 11,288.55 and 5,528.64 is: 7,631.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,177.67 : 11,288.55 = 5,528.64 : x
  2. Step 2: Convert to fraction form
    8,177.67/11,288.55 = 5,528.64/x
  3. Step 3: Cross multiply
    8,177.67x = 11,288.55 × 5,528.64
  4. Step 4: Simplify right side
    8,177.67x = 62,410,329.07
  5. Step 5: Solve for x
    x = 62,410,329.07/8,177.67
  6. Step 6: Final answer
    x = 7,631.80

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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.