Home / 9,416.99-12,998.94-8,085.35

Finding the Fourth Proportional to 9,416.99, 12,998.94 and 8,085.35

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Solution

The fourth proportional to 9,416.99, 12,998.94 and 8,085.35 is: 11,160.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,416.99 : 12,998.94 = 8,085.35 : x
  2. Step 2: Convert to fraction form
    9,416.99/12,998.94 = 8,085.35/x
  3. Step 3: Cross multiply
    9,416.99x = 12,998.94 × 8,085.35
  4. Step 4: Simplify right side
    9,416.99x = 105,100,979.53
  5. Step 5: Solve for x
    x = 105,100,979.53/9,416.99
  6. Step 6: Final answer
    x = 11,160.78

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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.