Home / 8,864.08-13,231.25-7,813.18

Finding the Fourth Proportional to 8,864.08, 13,231.25 and 7,813.18

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Solution

The fourth proportional to 8,864.08, 13,231.25 and 7,813.18 is: 11,662.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,864.08 : 13,231.25 = 7,813.18 : x
  2. Step 2: Convert to fraction form
    8,864.08/13,231.25 = 7,813.18/x
  3. Step 3: Cross multiply
    8,864.08x = 13,231.25 × 7,813.18
  4. Step 4: Simplify right side
    8,864.08x = 103,378,144.65
  5. Step 5: Solve for x
    x = 103,378,144.65/8,864.08
  6. Step 6: Final answer
    x = 11,662.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.