Home / 10,288.57-14,185.32-8,398.23

Finding the Fourth Proportional to 10,288.57, 14,185.32 and 8,398.23

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Solution

The fourth proportional to 10,288.57, 14,185.32 and 8,398.23 is: 11,579.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,288.57 : 14,185.32 = 8,398.23 : x
  2. Step 2: Convert to fraction form
    10,288.57/14,185.32 = 8,398.23/x
  3. Step 3: Cross multiply
    10,288.57x = 14,185.32 × 8,398.23
  4. Step 4: Simplify right side
    10,288.57x = 119,131,558.99
  5. Step 5: Solve for x
    x = 119,131,558.99/10,288.57
  6. Step 6: Final answer
    x = 11,579.02

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Double scale
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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.