Home / 8,623.38-11,934.47-8,416.33

Finding the Fourth Proportional to 8,623.38, 11,934.47 and 8,416.33

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Solution

The fourth proportional to 8,623.38, 11,934.47 and 8,416.33 is: 11,647.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,623.38 : 11,934.47 = 8,416.33 : x
  2. Step 2: Convert to fraction form
    8,623.38/11,934.47 = 8,416.33/x
  3. Step 3: Cross multiply
    8,623.38x = 11,934.47 × 8,416.33
  4. Step 4: Simplify right side
    8,623.38x = 100,444,437.90
  5. Step 5: Solve for x
    x = 100,444,437.90/8,623.38
  6. Step 6: Final answer
    x = 11,647.92

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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.