Home / 8,585.32-11,849.70-7,185.64

Finding the Fourth Proportional to 8,585.32, 11,849.70 and 7,185.64

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Solution

The fourth proportional to 8,585.32, 11,849.70 and 7,185.64 is: 9,917.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,585.32 : 11,849.70 = 7,185.64 : x
  2. Step 2: Convert to fraction form
    8,585.32/11,849.70 = 7,185.64/x
  3. Step 3: Cross multiply
    8,585.32x = 11,849.70 × 7,185.64
  4. Step 4: Simplify right side
    8,585.32x = 85,147,678.31
  5. Step 5: Solve for x
    x = 85,147,678.31/8,585.32
  6. Step 6: Final answer
    x = 9,917.82

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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.